Clean It Up

UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: -WindowWasher- on July 29, 2013, 02:34:18 pm

Title: Help??
Post by: -WindowWasher- on July 29, 2013, 02:34:18 pm
How do I know if it is Filters or Pressure that is causing high Tds reading????

Filters and Membranes only 4/5 months old.

Tap Tds = 280

After Ro Tds = 078

Resin Tds = 002 (1ltr) Used to last a week before I changed my filters n membranes now only 8hrs before its at 010

what do you think is wrong???
Title: Re: Help??
Post by: andyM on July 29, 2013, 02:38:02 pm
How much waste water is coming out of the waste pipe?
A lot of RO's work on a ratio of approximately 2 ltrs of waste water to 1 ltr of pure water.
Title: Re: Help??
Post by: Tom White on July 29, 2013, 02:38:24 pm
The only time my tds after RO increased like that was when they needed replacing; but this was about two years after I got them.

Have you be maintaining your membranes by flushing them?

Your filters probably could do with a change too.

I reckon you're going to end up having to buy new filters and membranes, but someone more knowledgeable will hopefully help you out.
Title: Re: Help??
Post by: formb on July 29, 2013, 02:39:23 pm
Test your pressure with this if you are unsure:

http://www.ebay.co.uk/itm/RO-MAN-Reverse-Osmosis-Pressure-Gauge-/181029172534?pt=LH_DefaultDomain_3&hash=item2a262df536

You can tell if you've got good pressure, loads of water will come rushing out when you turn the tap on.  ;D
Title: Re: Help??
Post by: windiewasher on July 29, 2013, 02:39:53 pm
Your membranes have shot it m8!
Title: Re: Help??
Post by: -WindowWasher- on July 29, 2013, 02:52:47 pm
Quote from: andyM on July 29, 2013, 02:38:02 pm
How much waste water is coming out of the waste pipe?
A lot of RO's work on a ratio of approximately 2 ltrs of waste water to 1 ltr of pure water.

The Waste water blasts out. Yeah i reckon it about that ratio. Does that mean I have good pressure?
Title: Re: Help??
Post by: -WindowWasher- on July 29, 2013, 02:59:16 pm
Quote from: Tosh on July 29, 2013, 02:38:24 pm
The only time my tds after RO increased like that was when they needed replacing; but this was about two years after I got them.

Have you be maintaining your membranes by flushing them?

Your filters probably could do with a change too.

I reckon you're going to end up having to buy new filters and membranes, but someone more knowledgeable will hopefully help you out.

Emm... Well I probs have not been flushing them as much as I should have been? Every 2/3 weeks for 5mins. How often do you do it?
Title: Re: Help??
Post by: -WindowWasher- on July 29, 2013, 03:15:39 pm
Quote from: Soupy on July 29, 2013, 02:39:23 pm
Test your pressure with this if you are unsure:

http://www.ebay.co.uk/itm/RO-MAN-Reverse-Osmosis-Pressure-Gauge-/181029172534?pt=LH_DefaultDomain_3&hash=item2a262df536

You can tell if you've got good pressure, loads of water will come rushing out when you turn the tap on.  ;D


ha! Well thats why Im a bit confuzed as ive never questioned the pressure as it blasts out the mains...? maybe i need to change my membranes and filters again :(
Title: Re: Help??
Post by: Don Kee on July 29, 2013, 04:18:01 pm
Have you dodged up your restrictor??