Clean It Up

UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: Gurdy on May 18, 2007, 07:15:13 pm

Title: water pressure to ro system
Post by: Gurdy on May 18, 2007, 07:15:13 pm

hi one and all, just a quick question, i've got 38psi water pressure going into my van mount r/o system, can only get water down to 41ppm into tank(Hants hard water :().  Here goes,is more/less pressure going into system better?????? :-\

Title: Re: water pressure to ro system
Post by: stevekennedy on May 18, 2007, 08:59:41 pm

The more the better. If using 4040XLP I think they can take up to 300psi. Don't quote me.

We run ours at 125psi. Gets the water down from 078 to 001. We resin filter the last bit out.

Title: Re: water pressure to ro system
Post by: EasyClean on May 20, 2007, 12:29:06 am

I was running a 4040 RO straight from mains with high pressure and my TDS had slowly risen to 42 after 4 years of constant use. I wasn't flushing out much waste water either because I was always filling my van tank as quickly as possible because I had fitted a flow restrictor to the waste flow.  Then after reading this forum I fitted a booster pump and regularly flush my RO and my TDS is back down to 003. It's like having a new RO again. Don't have to buy so much DI resin anymore.

Title: Re: water pressure to ro system
Post by: stevekennedy on May 20, 2007, 09:41:02 am

Good advice from easyclean. Always flush your RO regularly.

Title: Re: water pressure to ro system
Post by: Gurdy on May 21, 2007, 05:45:47 pm

cheers tried a mates outside tap, with 56psi, did the trick got it down to 28ppm on the right track now :)