Clean It Up

UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: billozz on June 21, 2006, 08:42:08 pm

Title: 300 gpd r/o unit
Post by: billozz on June 21, 2006, 08:42:08 pm
hey guys
we have one of the above, can some one tell me what to do if the tdi starts to climb, its still at 000 at the moment, but when do i look to replace something, and what do i replace, what i mean by that is do i replace the 3 filters on the r/o unit and the d/i filter or, as someone has suggested, just buy a new r/o unit. i understand that the filters are quite pricey, i think thats why it was suggesteed that i replace the whole thing. main thing though is when to do any of the above
Title: Re: 300 gpd r/o unit
Post by: macc on June 21, 2006, 10:12:39 pm
HI. Give Kirsty at Gardiners 01726 61143 a call, i cant remember axact but i think it was 4-6 months for the filters but they are only about £20. I flush mine each tme i re fill, she said to do that.

Macc
Title: Re: 300 gpd r/o unit
Post by: Chris Cottrell on June 21, 2006, 10:16:27 pm
The 3 filters on the bottom need changing every 5-6 months for peace of mind these will prob go longer but you figure , as for the membranes on the top if flushed regular will last for 2-3 yrs avg as for the DI check tds out of the RO  and after DI that will tell you when the resi is spent , mine reads 007 out of the RO and I change resin at about 003 to 004

Chris
Title: Re: 300 gpd r/o unit
Post by: Peter Fogwill on June 21, 2006, 10:19:52 pm
Keep an eye on the pressure gauge, when it dips or after 6 months your prefilters need changed.  DI as and when your OUT reading goes over 10ppm.  Your membranes should last 2-3 years, and is monitored with your IN reading on the meter.

The water treatment system itself will last forever, all you need to do is replace prefilters , membranes and resin, and they are relatively cheap.

Title: Re: 300 gpd r/o unit
Post by: JM123 on June 22, 2006, 10:31:41 pm
don't forget that the sumps must be replaced every 5 years as well