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UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: ian1965 on April 22, 2015, 05:09:08 pm

Title: RO 4040 waste water control valve
Post by: ian1965 on April 22, 2015, 05:09:08 pm

Hi were is the best place to obtain a RO 4040 waste water control valve Many thanks

Title: Re: RO 4040 waste water control valve
Post by: Ian Lancaster on April 22, 2015, 05:18:47 pm

Do you mean one of these?

http://gardinerpolesystems.co.uk/all-products/pump-hose/john-guest-fittings/1-2-fittings/1-2-push-fit-in-line-valve.html

Title: Re: RO 4040 waste water control valve
Post by: martinw on April 22, 2015, 06:15:37 pm

or you could get gate valve which offers better control but needs to be adjusted more frequently as per gaps water recommendation
http://www.wickes.co.uk/Wickes-Brass-Fullway-Gatevalve-15mm/p/420185#

Title: Re: RO 4040 waste water control valve
Post by: richard groves on April 22, 2015, 09:10:19 pm

Quote from: martinw on April 22, 2015, 06:15:37 pm

or you could get gate valve which offers better control but needs to be adjusted more frequently as per gaps water recommendation
http://www.wickes.co.uk/Wickes-Brass-Fullway-Gatevalve-15mm/p/420185#

When I had my 4040 set up thats what I used.
Additionally on Phil from Vyairs advice I set up a bypass around this valve with two t pieces, a length of pipe and a ball valve. Set the gate valve to its optimum pure tds/waste ratio and then you simply open the ball valve to flush and close it to produce pure.
Means you  need very rarely  adjust the waste valve again once you have found that sweet spot . :)

Title: Re: RO 4040 waste water control valve
Post by: ian1965 on April 23, 2015, 09:00:59 pm

Thanks