How to Change Filter

I bought a house that has the water filter. I have extra filters but don't know how to change it. Where can I find instructions on your website? I have the Doulton Ceramic Water Filter Candle - 2" X 9 3/4" Open end ceramic filter.

 The Open End filters fit any Standard Filter Housing and we do not have instructions for those units. However, just make sure you shut-off the water to the filter, have a bucket under the filter because it will be full of water, and unscrew the filter housing.
Then, you can remove the cartridge and insert the new one (with the open end facing up). Turn the water back on and inspect for leaks.
Flush water (run to waste) through the system for 10 minutes and then let it sit for 12-14 hrs. Flush an additional 5 gallons the following day and then the filters are fully primed and ready for use.

Need proper thread nuts for gravity candles

I have a set of 4 Doulton gravity fed water filter candles (10 inch) with 1/4" threads and I need the nuts to go with them. I cannot find any that fit the threads. Can you help me?

 The candles we just sent you have the 1/4" thread and we have the nuts available for those filters. You can find them (ACC-GW) .on Accessories page.

Wing nut and gasket replacement for gravity filters

Is there a part number and price for replacement wing nut and gasket for the 7" or 10" candle filter?

 It's the ACC-GG Gravity Candle Gasket and ACC-GW Gravity Candle Wing-nut. Both of the items are found on the following accessories page :  http://doultonusa.com/HTML%20pages/doulton_filter_parts.htm.

Gravity filter spigot

I bought from you a Gravity Water Filter GSS2 . Now I need to replace the spigot (ACC GSP Gravity filter spigot with 2 washers) and I need to know if you can send it to Portugal; if so, what are the procedures?

This part can be found and purchased from the following link http://doultonusa.com/HTML%20pages/doulton_filter_parts.htm with the understanding that you will incur an additional international shipping cost of about $ 22.00 for International rates to Portugal.

Diverter Valve Replacement for Doulton Countertop filter series

I need to replace my "Diverter Valve" for my Countertop water filter, how can i get one?

 Please see our ACC-DIV-CP diverter valve replacement assembly for $ 25.00 on the following link: http://doultonusa.com/HTML%20pages/doulton_filter_parts.htm.
Replacing Diverter Valve Kit on Doulton Countertop Filters Instructions.

How Do I Replace Filters??

 I have a 3 cylinder Doulton unit under my sink. I'm at a loss how to get the cartridges out. The water stream from the faucet is nearly just a trickle now and I really need the filters changed. I  have the replacement filters, but just cannot figure out how to get the plastic sleeves undone. I didn't get any instructions when my plumber installed it and he came over about 8 months ago and took the filters out, rinsed them and that did the trick (the unit was only in about 12 months).

I got as far as the top off, took out 8 screws, a plastic piece came off the three cylinders and then I see these cylinders have a rubber seal holding them into the unit. So, I just put it all back together and now I'm really frustrated because I just don't know what to do. My plumber is out of commission so I can't get him to help. Can you?? Thank you for your assistance.

Hopefully following these instructions will help you:

1. Shut-off the water to the filter. Open the filter faucet up to  remove back pressure built-up. Wait 10 minutes.
  2. Unscrew the filter housings (turn left (clockwise direction if underink) There should be no reason to remove any screws. The screws are only meant to mount the filters to the bracket. The filter housings are the white canisters that have the cartridges inside. These are simply unscrewed so you have access to your cartridges.
 3. Unscrew the filter cartridges and replace with new ones or just clean the ceramic candle ( labeled Ultracarb).
 4. Put everything back together and turn shut-off valve back on.
  Inspect for leaks.
  Here is a link for ceramic filter cleaning instructions: http://doultonusa.com/HTML%20pages/cleaning_candle.htm

Thank you for providing these instructions! It worked! The problem was that the plumber that installed the unit had the cylinders screwed in so tight I could not budge them. I was able to get someone to look at the unit this past wkend, he was able to get the cylinders detached, I was able to flush the filters and now the unit is working just fine!
 I love this water filtration system!!! My water is horrible and even with a water softener, I won't drink it. However, with the Doulton filters, I can drink the water! THANK YOU for a terrific product!!

We are so happy we were able to provide some assistance and the issue is now resolved.
Please remember to hand-tighten only. They do not need to be screwed on so tight! Please let us know if and when you need replacement filters and we'll be sure to ship them out right away.

Filtering Hot water

Just wondering if hot water affect the performance of your water filter??
Why I ask? Seems that after I use your product, perhaps after filtering hot water, I realize that there is a built up of white calcium deposits stuck to the rims of the cylinder of my water boiler. Perhaps is the calcium on your filter (large amounts) is transferred to my water boiler???

These filters are for cold water use only and water entering the filters should not exceed 99 degree. There is no calcium in our filters, nor will the filters remove calcium. This is most likely coming from your hot water heater because hot water precipitates calcium faster.

Problems with aquacrock

We bought 2 aquacrocks a few weeks ago. One went to my husband's office and the other is in our house. The house one is only  producing about a quart of filtered water in 6 hours. What is wrong?

I'm sorry to hear you are experiencing problems with your AquaCrock filter system. With gravity filters, such as these, it can take 3-4 days for the ceramic filters to condition themselves to the water
supply. During this time, the filter production rate can be brutally slow. After 72 hours of the filters being in contact with your water, the flow-rate should drastically increase and even reach above 1/2
gallon (2 quarts) per hour. How long has these filters been installed and have been filtering the water? If the unit is not producing water fast enough after several days in operation, then I would advise you
to remove the 3 candles from the system and let them completely dry out. After about 24 hrs and dry, reinstall the candles and run 1 batch of water through the unit and discard it. Then, fill up the top
reservoir full of water once again and see how long it takes to filter the water. At that time, you can consume the filtered water.
If the problem still persists after this conditioning process, please let us know right away and we'll take the next step.

Nitrate Filters For Gravity Filters

gss2- i want nitrate protection also...how do i configure the gss2?
do i run water through supersterasyl candles and then replace supersterasyl candles with nitrate candles and run it through again?

 The 2"x4" Nitrate filters connect to the SuperSterasyl filters at the UNDERSIDE of the upper chamber. We provide it with a coupler that connects the two kinds of candles together so that the water goes through BOTH filter elements. Please see

Installation Instructions of Specialties Elements for Gravity Filters

http://doultonusa.com/doulton_water_filters/Installation-instr-for-specialties-elements.pdf

Water filter running very slow

Our water filter is running extremely slow.   Do we need to replace the filter?

 The filter should be replaced ever 6 months for a household of 4 people (1 yr. for 2 personl HH). However, during that time, you may see a considerable decrease in water flow-rate because the ceramic filter candle is becoming clogged. When this happens, you can clean the filter to restore the flow-rate to its' typical 1/2 gal. per minute. Please see cleaning instructions here: http://doultonusa.com/HTML%20pages/cleaning_candle.htm.

What Order are the Filters Installed?

The tap water should go to which one first---the ceramic one or the one with metal deduction (the one you are shipping to us for replacement).

The B-2 metal reduction filter (or any specialty element filter) is the one which is installed in the FIRST filter housing. The ceramic filter element is almost ALWAYS installed as the last stage of filtration.

In what order to install water filter cartridges and when to replace.

I have your IS200UC +water filter with the Ultracarb candle in one tank and the CN-B2 flouride/metal reduction candle in the other. I understand that the CN-B2 is not cleanable, but should be replaced every 6 months (which is now). In the flow of water from incoming water to the tap, which filter should be in the first tank?

The B-2 is not cleanable because the shell of the candle is not a filter. The Ultracarb filters from outside/in which means the ceramic membrane acts as the first filter stage and traps the solids.
Eventually, the ceramic memrane (shell) gets dirty and plugged and requires
cleaning http://doultonusa.com/HTML%20pages/cleaning_candle.htm when the flow-rate of water has diminished. Both filters, regardless of cleaning, are recommended to be replaced every 600 gallons (6 months for 4 person house-hold). The B-2 should be implemented into the  first filter housing, followed by the Ultracarb filter in the second housing.

Doulton counter top (single canister) water filter conversion into undersink.

I have a Doulton counter top (single canister) water filter-model HPC/UP and now live in a home that has a kitchen faucet with pull out sprayer, so I know I can't use my filter on top of the counter. Would I be able to use the under the counter converter kit and still use the filter I have?

Yes, the kit to convert single canister countertop water filter into under the sink  is perfect for your situation.
However, it does not include a water filter faucet, which you would need to purchase, as well. Please take a look at our filtered water faucets selection here:
http://doultonusa.com/HTML%20pages/faucets_single_taps.htm.

Conditioning dual canister Doulton water filter

My family uses the CP200UC countertop water filter. We use the Ceramic Ultracarb candle and the B2 Fluoride cartridge. We've been using this for years, but upon installing new cartridges today, I realize there aren't complete instructions and I've been guessing all this time at the procedure for install.
The Ultracarb ceramic candle comes with an instruction sheet that says to run 10 mins, condition 24 hrs, then run 10 more mins.
The B2 fluoride filter doesn't come with any instructions and I haven't found any further install instructions on your site. There is also no indication anywhere that I have found for which order these two filters are attached
or how to install together in consideration of the initial particles they need to flush.
For example, maybe I don't want to have the ceramic filter's dust clog up the B2 carbon filter? Or maybe since I see the carbon on the inside of the unit being released, that it's the reverse?

So here's what I've been doing. I hope you will confirm or correct:
- First, I install the ceramic filter to do the 24 hr conditioning and flush. I do it by itself so that it doesn't effect the B2. I install this ceramic filter in the first position, filtering the water before it gets to the B2.

- then I install the B2 filter and run for ten  minutes. This is in the second position so that it filters the water after the candle. I do not know if it needs to be conditioned for 24 hours etc.

I hope you can clear this up for me. I'd like to maximize the effectiveness of this system.

It is wise to flush the candles separately for the first ten minutes. The following day, you can flush them both at the same time for another 5-10 minutes and then it's ready for use.
Install the ceramic filter in the second canister (last filter) before the water comes out of the filter spigot.

Servicing undersink ceramic water filter

I have a 3 cylinder Doulton unit under my sink. I'm at a loss how to get the cartridges out. The water stream from the faucet is nearly just a trickle now and I really need the filters changed.

I have the replacement filters, but just cannot figure out how to get the plastic sleeves undone. I didn't get any instructions when my plumber installed it and he came over about 8 months ago and took the filters out, rinsed them and that did the trick (the unit was only in about 12 months).

I got as far as the top off, took out 8 screws, a plastic piece came off the three cylinders and then I see these cylinders have a rubber seal holding them into the unit. So, I just put it all back together and now I'm really frustrated because I just don't know what to do. My plumber is out of commission so I can't get him to help. Can you??

A: 1. Shut-off the water to the filter. Open the filter faucet up to remove back pressure built-up. Wait 10 minutes.
2. Unscrew the filter housings (turn left (clockwise direction if underink). There should be no reason to remove any screws. The screws are only meant to mount the filters to the bracket. The filter housings are the white canisters that have the cartridges inside.
These are simply unscrewed so you have access to your cartridges.
3. Unscrew the filter cartridges and replace with new ones or just clean the ceramic candle (most likely labeled Ultracarb).
4. Put everything back together and turn shut-off valve back on.
Inspect for leaks.

Here is a link for ceramic water filter cleaning instructions

Customer feedback:
Thank you for providing these instructions!  It worked!   The problem was that the plumber that installed the unit had the cylinders screwed in so tight I could not budge them.  I was able to get someone to look at the unit this past weekend, he was able to get the cylinders detached, I was able to flush the filters and now the unit is working just fine!  I love this water filtration system!!!  My water is horrible and even with a water softener, I won't drink it.  However, with the Doulton filters, I can drink the water!  THANK YOU for a terrific product!!

I cannot seem to unscrew the water filter head from the sump

In my new home came installed a MT660 filter and I am trying to install a new ceramic candle (MT661 RFC-Ultracarb).

I cannot seem to unscrew the head from the sump, as I feel I am about to break the unit. Any ideas? Tips or tricks?

1. Turn off the water to the filter

2. Open (turn on) the filter faucet, this will relive the back pressure

Once you change the Ultracarb candle apply a bit of vegetable oil to the sump "O" ring before closing.

The Ultracarb looks very brown.

I have to clean the Ultracarb every week. Far too often. I have tried 1um pleated and other prefilters but does not help much. What can I do to increase the time between cleaning?

How much water are filtering per week and how dirty is your water.

For normal household using the filtered water for drinking and cooking typical cleaning frequency is 2-3 months. If you are typical user and still have to clean it once a week then there is something wrong somewhere.

What is on the surface of the filter when you need to clean it? Does it feel slippery/slimy? If so then you have excess amount of heterotrophic bacteria (harmless) in your water supply which 1 micron pre-filter will not stop them at all.

We use about 10 litres (approx 2.5 gal) per day. The water appears clear. A lab report says that all is OK (E.Coli, mineral content and hardness etc) EXCEPT that there is a large amount of total coliforms (580 MPN/100ml).

The ultracarb looks very brown. The plastic ends in particular feel a bit slimy so it could be heterotropic bacteria as you suggest.
I will have a good look at it when I next have it out.
Could the bacteria grow on the outside of the ceramic, or will the silver content stop this?
Maybe I should use chlorine dioxide or hydrogen peroxide to disinfect the tank. Perhaps a 0.5um carbon block filter used as a prefilter may help a bit?

It is the bacteria that plug up the filter. No pre-filter can help you unless you use 0.5 micron absolute which you'll be back at square one, change out the absolute filter once a week and they are expensive. The silver in the ceramic controls the growth of bacteria from proliferating on its surface.

When you clean the candle make sure you scrub off until the candle become white. Remember that recommended change out is every 6-9 months or maximum 50 cleanings.

Counter top Nimrod filter for filtering local city water.

I have a counter top Nimrod filter for filtering local city water, which is probably clean and safe as is. I use it every day, but in 8 months I have only used 20% of the filter's capacity. That is, the Filter Life reading is 80. Can I continue to use the filter for its full life? Can I continue using it until the Filter Life reading is near 0, or is the length of timed used an important issue?

Use it till full capacity or approximately 1000 gallons. CPI100UC (Nimrod, ICP) Countertop Water Filter Installation and Conditioning Instructions>>

After I turn the water off, my Nimrod unit continues to drip water. Is this normal?

The ceramic candle needs cleaning, the drip is caused by back pressure build up in the filter. For cleaning instruction visit the following link: http://www.doultonusa.com/HTML%20pages/cleaning_candle.htm

Manual for Sulfur Filter System

We have a Iron and Sulfur Filter System but we don't have enough information on the upkeep. We have a manual with the last few pages missing and we have no information on the brine tank. Is there anything you can do for us? Is there a manual we could get? Could you tell us where to look, at least? Anything you could do for us would be greatly appreciated.
From your description it sounds to me that you have green sand filter which requires potassium permanganate to regenerate. The most common valves with those filters are either Fleck or Autotrol. The only upkeep to it is make sure you have pot-perm in the brine tank and set the time clock to regenerate every 3-4 days. Other than this I don't have more information.

Can the supercarb, ultracarb or the imperial ultracarb be cleaned so that it can used again ?

I noticed on this link it only shows the 1 cartridge that can be cleaned. http://www.doultonusa.com/HTML%20pages/ceramic_cartridges.htm#DOE

The flow rate of the ceramic filter can be easily renewed by simply brushing its outer surface with a stiff toothbrush, plastic brush or soft scouring pad under running water. As the top layer of ceramic and the contaminants are brushed off and flushed away, a new layer becomes available. With the Sterasyl candle/cartridge this process can be repeated over 50 times and or when the diameter of the slimline element reaches 1.75/44 in./mm. Supersterasyl, Ultracarb and Supercarb candles/cartridges should be changed every 6-9 months as their carbon media will get exhausted sooner than the ceramic.
For more information please visit the following link: http://www.doultonusa.com/HTML%20pages/cleaning_candle.htm
Imperial Ultracarb lead removal capacity is 2000 gallons.

I have a doulton filter fitted with "stearasyl" candle.

I tried to see some tests made on this candle on your web site but its only

available on "superstearasyl", "ultracarb" etc and not on "stearasyl".

Aside from removing bacteria...

Does this stearasyl candle also

1. Improve the taste?

2. Remove chemicals like, chlorine and chloramine?

Sterasyl candle is for microbial removal only. Organic chemicals are reduced with the carbon inside the Sterasyl such as Supersterasyl in gravity mode or Supercarb and Ultracarb in pressure filters.