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UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: matty72 on September 14, 2020, 06:43:33 pm

Title: tds just wont go down with 4040,any more ideas please
Post by: matty72 on September 14, 2020, 06:43:33 pm
Got a new Axeon membrane for 4040, all seems to work okay but my tds is at 110, have fitted a pump it brings it down to 72, out of tap is around 250, anyone know what might cause this not to drop further, in the past i got to high teens, is there anyway the housing can be to blame, any ideas , i have flushed the system three time for hours, no difference,any ideas to try, cheers.
Title: Re: tds just wont go down with 4040,any more ideas please
Post by: Bungle on September 14, 2020, 06:56:12 pm
Is the membrane in the housing the right way up? Is it an HF5 or HF4? What is your water pressure from mains tap? Have you tried closing the water inlet valve down to allow the membrane to ‘work’?
Title: Re: tds just wont go down with 4040,any more ideas please
Post by: matty72 on September 14, 2020, 07:13:34 pm
Hf4, in the right way checked three times, the white ring bit is at the input end of where water comes in , I've adjusted the water between waste and pure lots of times trying all different levels, im going to order a new pressure gauge chucked old one out but with the pump on the pressure is good
Title: Re: tds just wont go down with 4040,any more ideas please
Post by: Bungle on September 14, 2020, 07:29:59 pm
You’ve bought an HF4... you know they are for high input pressure? What is your waste - pure ratio? I’ve got a feeling you’re sending most of your water to waste.

It seems odd that you were getting high teens before. That is high!

Have you flushed the membrane with it fully open for a good hour? You say you’ve flushed but was  the waste valve fully open?

I’ve just bought an Axeon HF4 and it was producing 012 to start with. I flushed it again and now I’m getting between 006 and 007. My TDS is around 200 going in.

We need Spruce here.
Title: Re: tds just wont go down with 4040,any more ideas please
Post by: dd on September 14, 2020, 07:36:15 pm
Could be a duff membrane.
Title: Re: tds just wont go down with 4040,any more ideas please
Post by: matty72 on September 14, 2020, 08:04:31 pm
Yea i got the membrane with gapswater, its a Axeon hf4, I have flushed system loads of times, I;ve just ordered a new pressure gauge, one i had before broke and stuck on 50psi, it didnt work properly, I have a  water valve tap that i open and close I can adjust  how much water goes to the waste and pure outlet, i will get a new one any suggestions where to get,  I sould be getting alot lower tds .
Title: Re: tds just wont go down with 4040,any more ideas please
Post by: matty72 on September 14, 2020, 08:06:01 pm
i go for about 65/35 waste to pure
Title: Re: tds just wont go down with 4040,any more ideas please
Post by: Richard Groves on September 17, 2020, 07:22:13 am
O rings seated correctly and not damaged  ?