Clean It Up

UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: Topclean on October 11, 2010, 07:27:21 pm

Title: 4040 PROBLEM
Post by: Topclean on October 11, 2010, 07:27:21 pm

need some advice please lads,  bought my  ro 4040 about 6 months ago, when i first used it i was getting a reading of between 12-18.   The best i can get now is 76 :o   I have got a clarke booster pump but this is still to high i am using so much resin its not good.  I now there was a thread not that long ago with simalar thing but cant find it.

Can anyone post the link for me or have any ideas?

Title: Re: 4040 PROBLEM
Post by: Lee GLS on October 11, 2010, 08:09:49 pm

it might be the seals need checking that waste water isnt leaking back in, have you flushed the ro as well.

Title: Re: 4040 PROBLEM
Post by: AJ on October 12, 2010, 07:04:12 am

I'd change the pre filters. Depening on how much water you produce, 3 months is long enough for these. Pay special attention to the carbon filter as chlorine will ruin the membrane.

Title: Re: 4040 PROBLEM
Post by: Topclean on October 12, 2010, 07:43:40 am

lee i have flushed for a while,  what seals do you mean, is it the big round ones on either end of the ro?

Aj i have replaced the pre filters a little while ago, this made no difference to tds.  this is the second time this has happened.  surely these membrane must last longer than 6 months.

Could it be the housing itself? ???  doin my head in.

Title: Re: 4040 PROBLEM
Post by: AJ on October 12, 2010, 10:37:09 am

When you changed the filters, it is possible to not seat the o ring properly. This will allow chlorine to pass through. Take it all apart and refit all the seals. A little silicone on them should help the seal. Also, don't over tighten.

Title: Re: 4040 PROBLEM
Post by: Topclean on October 12, 2010, 05:32:53 pm

Thanks aj i'l give that a whirl.

Title: Re: 4040 PROBLEM
Post by: Topclean on October 12, 2010, 07:34:54 pm

that reduced it by 2, tds 74. This really is doin my head in.

Any more sugestions lads.

Title: Re: 4040 PROBLEM
Post by: rg1 on October 12, 2010, 07:36:13 pm

Quote from: Topclean on October 12, 2010, 07:34:54 pm

that reduced it by 2, tds 74. This really is doin my head in.

Any more sugestions lads.

Go back to the supplier?