Clean It Up

UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: mufcglen on July 03, 2017, 04:01:52 pm

Title: 4040 ro question
Post by: mufcglen on July 03, 2017, 04:01:52 pm

hi guys im currently going through a bag of resin every 2 months and using about 450-500 litres a day with a tap tds of 76ppm and using the double di in the van method but i'd like to put a 4040 ro in the van and fill the tank at night as i dont have the room at home to keep a separate tank.
can anyone tell me how many litres an hour a 4040 generally produces off an average tap pressure or with a booster pump if it makes a big difference?

Title: Re: 4040 ro question
Post by: Spruce on July 03, 2017, 05:55:07 pm

Quote from: mufcglen on July 03, 2017, 04:01:52 pm

hi guys im currently going through a bag of resin every 2 months and using about 450-500 litres a day with a tap tds of 76ppm and using the double di in the van method but i'd like to put a 4040 ro in the van and fill the tank at night as i dont have the room at home to keep a separate tank.
can anyone tell me how many litres an hour a 4040 generally produces off an average tap pressure or with a booster pump if it makes a big difference?

50 psi,  90 - 120 tap tds, HF 5 Axeon membrane, no booster, 2lpm (120 liter an hour,)  efficiency of 98%.

Bag of resin lasts 4 years.

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Title: Re: 4040 ro question
Post by: mufcglen on July 04, 2017, 04:47:03 pm

thats not bad bad, would lower tds mean more pure water output?
also do i need the other filters or just bang it straight through a 4040 ro?

Title: Re: 4040 ro question
Post by: Spruce on July 04, 2017, 10:08:20 pm

Quote from: mufcglen on July 04, 2017, 04:47:03 pm

thats not bad bad,

would lower tds mean more pure water output?  Yes

also do i need the other filters or just bang it straight through a 4040 ro? Yes

You need 2 prefilters to be sure, the first a sediment and the second a carbon block. You could get away with just a single carbon block prefilter if your water is good. Ours isn't so we have a sediment filter.

I opted for 20" prefilters and we use Fiberdyne carbon block filters on our 4040. A 20" has a  service life of 75,000 liters which includes pure and waste.

Here's a link to mine in a cabinet. You should be able to follow the way its fitted together.

http://www.cleanitup.co.uk/smf/index.php?topic=177074.msg1496819#msg1496819

You need to consider bad winter weather as ice destroys components and membranes.

You need an inlet from the tap and a waste hose to an outside drain.

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