[jk999]

Which is the best 4040  ro or similar product  and where is the best places to get one from , question for everyone off you guys that own one how often do you change filter and membrane and at what cost to you .and also how many litres do they produce a day and lol how do you go on with the resin how big vessel do you have for resin sorry for all questions cheers kev

[Pete Thompson]

4040 HF5 is what you want.  Axeon are a good manufacturer.  There are a few cheap chinese copies floating around on ebay etc, I've no idea if they're any good or not, but personally I would stick with a reputable brand.

This is a "low pressure" membrane, ie it will work fine with normal tap pressure, as long as it's not stupidly low like 20psi or something.

You'll also need the CHAMP housing to put it in, plus a few connectors and bits.  And, you will also need prefilters to protect the membrane, but they are cheap.  You'll need a 5 micron filter and a carbon filter, with atlas housings for each of them.

So in summary you will need:

40 inch champ housing (about £180)
HF5 4040 Axeon Membrane (about £260)
5 micron filter (about £5)
carbon filter (about £5)
Atlas housings for the prefilters x 2 (about £30)
Connectors £???

As long as you change the prefilters every 6 months, and flush the membrane for an hour once a week, it should eaily last you 5 years.

[South Window Cleaning Ltd]

http://www.ebay.co.uk/itm/151189009032?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1558.l2649

[jk999]

pete water pressures about 60 to 80 psi

[jk999]

is that it nowt for me 

[Pete Thompson]

pete water pressures about 60 to 80 psi

Should be more than adequate for a HF5 4040