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.

Portable water filters for fluoride-how to install specialty cartridges

Hi, it's been awhile since I ordered replacement candles for my GSS-Mini. Is the 2.75"x5" (L) Imperial SuperSterasyl ATC ceramic candle the replacement for the old 4" candles?

The important thing is that it filters out Fluoride and heavy metals.

The 5" ATC does go in the GSS-Mini and it will filter out particulate, chemicals, microbes, and lead (should reduce some other heavy-metals as well).
It should not be relied upon for fluoride removal (thought it may reduce levels).  Fluoride requires a separate/dedicated specialty filter that can be added on to a system, but because of its' size, the GSS-Mini can not hold this additional element.

Thank you for your response. I've been using the GSS-Mini since 2006 and I was told  that it does filter out
fluoride. In any event, I don't test my filtered water beyond knowing that it tastes worlds better than water
straight from the tap, and I can drink it all day without feeling queasy. Plus it's yet again worlds better tasting than any "purified" water I can buy at the store.

I've looked at your other filtration systems, but I live in an apartment and the management here won't let me modify the plumbing in any way, so I don't see anything other than the GSS-Mini that I can use. But maybe I missed something that you have. Do you have a product that can completely filter out fluoride, and hopefullypharmaceutical drugs as well, that doesn't require any kind of modification of household plumbing? If not, I'll be quite happy to continue using the GSS-Mini.

The media used in the ATC filter can remove lead and reduce the levels of other heavy-metals (fluoride is considered a heavy-metal), but should not be relied upon for fluoride removal.
For apartment I would recommend the GSS2 portable filter plus 2 x CN-B2 2"x4" fluoride/heavy-metal filterelements. I'll provide the link where you can purchase these items:
http://doultonusa.com/HTML%20pages/portable_systems.htm

Using this set-up, the fluoride and pharmaceuticals will be significantly reduced to near non-detectable levels.

I received my GSS2 water filter w/specialty filters today, and just to make sure before I use it, do the fluoride/heavy metal specialty filters go in the (bottom) clean water receptacle? I don't see anywhere else for them to go. If so, should I be careful not to let the bottom fill to the point that the water would contact them? It seems like eventually the specialty filters will get dirty, and then they would contaminate the clean water, but I don't know how these work.
Also, can these filters (all 4) be scrubbed clean with a Scotch Brite pad, like the GSS-Mini's can?

The B-2 elements attach at the underside of the upper chamber, just as the Installation Instructions of Specialties Elements for Gravity Filters sent indicate. You are correct to assume that they hang in the bottom chamber. They can be in contact with the water, for they are water filters which are designed to be in contact with water at one point or another. They would be in contact with already filtered water so they should not get dirty. However, if the filter go for extended periods of non-use, you would be advised to clean all the filters and canister, and discard a batch of water before continuing to use filter.
Only the ceramic filters should be cleaned using a Scotch Brite pad.

Fluoride reduction "add-on" water filter

If I am already using the single canister Doulton Ultracarb ceramic water filter and would like to reduce fluoride, should I just buy the fluoride canister, or is something more required to add the two together?

If you are using a Doulton undersink filter system and would like to "add-on" for fluoride removal to this single housing system, please click on the following link and we will provide you with the necessary items to conveniently connect the two:
http://doultonusa.com/doulton_water_filters/fluoride-arsenic-removal-undersink-upgrade-filter.htm.

As you can see, it simply plugs into your existing filter housing on the inlet side of the install.

Whole-house Fluoride Water Filter Recommendation

We have received and reviewed your Water Analysis you sent via fax. What I would recommend is the following:

For the fluoride removal, you should consider the whole-house fluoride removal system, located here:
http://doultonusa.com/whole_house_water_filters/whole-house-fluoride-removal-filters.htm.

Activated Alumina is widely known and considered to be one of the very best and only means of filtering out fluoride from the water.
Recommended system contains a programmable back-wash valve which will flush out the filter media every 3-4 days.

For your drinking water, it is always recommended that you have a reliable point-of-use filter system. This can be installed directly underneath your sink and it will filter out suspended particles, turbidity, bacteria and cysts (micro-organisms), chlorine, herbicides, insecticides, pesticides, industrial chemicals, disinfectant by-products (THMs), lead (and other heavy-metals).
The fluoride will be already removed by your whole-house system so you would not need any more than the single housing system (100 series),  located here, using Doulton Ultracarb Ceramic Technology:
http://doultonusa.com/HTML%20pages/ip100UC.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.

Ceragrav model LP5

I am a missionary in Angola, Africa with a family of four. We host visitors frequently. I am interested in purchasing a Ceragrav model LP5. I understand that it can hold up to 5 candles. How many would be best for our family?

The LP5 comes with 2 elements which can produce 20 gallons, if needed, of fine filtered water in a 24hr period. Thats almost a gallon per hour.
Each additional element is an extra ten gallons per day.
Each Imperial Supersterasyl  element is good for 750 gallons. For a family of four depending
on how much water you use, two elements can last you 1 year before you need to replace them.