[dankay]

Hi all.
Really good site that helped me jump from trad w/c to the wfp route. Will be combining both methods.

Purchased a complete almost new Purefreedom trolley (to start off with) and live on the second floor in a small block of flats.
I don't have an outside tap to purify the water, hence I'll have to start it off by connecting my 200 GDP RO system to my bath taps and hose it through to the water butt on my balcony .
THE PROBLEM: Attempted purifying the water but no water passes from RO to DI, only very tiny delayed drops....if that!
I would really appreciate your help, thanks.

Dankay

[Londoner]

I would say that on the second floor there is not enough pressure probably.

[barry mallett]

when they sell you these 200 gpd r o units they fail to tell you it actually stands for 200good pure drops and thats if your lucky in a day

[rich fraser]

Not having enough pressure could be right, but i was in a 3rd floor my self and had great pressure. It might be that you are connecting to taps. If you go to b'n'q they do a self cutting tap that will go onto copper pipe. I found this produced alot better pressure and you could attach a hozelock connector to it. Try and find where the mains enter your flat and and attach it as close to there as you can. Failing all this a booster pump might cure the problem. They do a decent clarke cbm 250 booster pump in machine mart, i got mine about 12 months ago for £250.
Hope this helps. Rich

[dankay]

Thanks for the feedback.
Apart from likely needing a booster pump, could it be that the filters/membranes are clogged up because previous owner only used the system less than 10 times and left it all standing for a whole year?
Should I replace the prefilters?                                                                                                                                                                                                     

[darragh windows]

your bath taps would more than likely not be a mains feed

[♠Winp®oClean♠]

your bath taps would more than likely not be a mains feed

True, it's very unlikely that your bath taps are fed from the mains. Usually only kitchen tap is mains fed but you're in a flat so not 100% on this.

Is there a cold water storage tank tank in the flat anywhere? If so, you could have good flow to taps but no pressure behind it.

As for self-cutting tap, I would tap off the mains feed pipe with a proper "T" connector for a much better feed. The self-cutting taps only pierce a small, none uniform hole in the pipe. Yes, it lets water through but not half as good as a full-bore connector. Very easy to do with either a compression or push-fit "T".

[Window Washers]

your bath taps would more than likely not be a mains feed

True, it's very unlikely that your bath taps are fed from the mains. Usually only kitchen tap is mains fed but you're in a flat so not 100% on this.

Is there a cold water storage tank tank in the flat anywhere? If so, you could have good flow to taps but no pressure behind it.

As for self-cutting tap, I would tap off the mains feed pipe with a proper "T" connector for a much better feed. The self-cutting taps only pierce a small, none uniform hole in the pipe. Yes, it lets water through but not half as good as a full-bore connector. Very easy to do with either a compression or push-fit "T".

have to agree with this post as I used a self cutting tap to be lazy, I then had to replace with compression t and now works fine, do you know were your stop cock is in your flat ? have to checked this is open to nearly full, I had to turn the tap down for my bath and basin upstairs as the water was way to powerful, it could be a easy fix although unlikely worth a try though before getting another tap.

[michael papworth]

I'm not 100% sure about this, but I think you'll find that the stop cock is on the rising main. Your feed to the RO unit will need to come from this line. You'll probably find that the cold tap in the kitchen is connected to the rising main.

The bath taps may well be fed from a cold water tank and there'll not be anything like enough pressure to run an RO unit.

Best advice is to contact a plumber.

[Andrea Bygrave]

Just a possibility, but maybe worth mentioning. I have a 200gpd system, and I changed my prefilters end of last year (I change them every 4-6 months). After that, I had hardly any water coming through, either pure water or waste water. So I changed the membranes as well. Still no good, though the water pressure was normal. After much buggering about, phone calls etc, the company that supply me my stuff let on that they had had a batch of dodgy ones, namely the middle one in the prefilters, the blue one. Why they couldn't have told me this before I don't know. A new one sent out FOC, problem solved. Loads of water now.

[daz1977]

simp[ly thing to find out if bath is connected to mains,

do u have a combi boiler, if you do then it will be on the mains

if not,  u shoudl have a tank in airing cupboard,  thsi will fill the hot water tank and your cold taps, in bathroom,   turn off stop cock and run cold tap in bath, if it runs for more than a 1 min with no slowing down of pressure then it is coming from the tank,  u will need to then fill up from the mains, i would say your best bet is your washing machine connection,  u might have to get a y piece and connect up, it is pretty easy

if you can not do this  then connect to the rising main in the airing cupboard with a washing machine tap connector as this will take a hosepipe tap connection and allow you to fill up

i know this will work as i was a plumber for 5 years adn this is what i would do, any probs email me at bmwc@live.com

[dankay]

THANKS ALOT for all the good input!
 I can finally produce pure water at good pressure!
 Thanks to especially Wally the Window Washer and Daz1977 -  my kitchen cold tap is directly connected with/into the main feed pipe!! Simply swapped the hose into the second washing / dishwasher tap connector (connected to main feed pipe), whereas before I connected it to the washing machine tap connector!!!
THANKS AGAIN.
Daniel