Clean It Up

UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: sparklebright on January 23, 2010, 08:59:51 pm

Title: How often do you change your membranes
Post by: sparklebright on January 23, 2010, 08:59:51 pm

Had my new membranes in my 300 gpd unit for a 13 months now. Looks like they need replacing.
My unit is on 24/7. Does this sound to soon to any of you?

Title: Re: How often do you change your membranes
Post by: AuRavelling79 on January 23, 2010, 10:00:39 pm

No. It sounds good to me.

What was your tds in/out when you bought the last membranes? What is it now?

Title: Re: How often do you change your membranes
Post by: john tomkins on January 23, 2010, 10:05:01 pm

Quote from: sparklebright on January 23, 2010, 08:59:51 pm

Had my new membranes in my 300 gpd unit for a 13 months now. Looks like they need replacing.
My unit is on 24/7. Does this sound to soon to any of you?

Yes, mine are 3 1/2 years old and still putting out 5 tds, have you been changing filters regular?

Title: Re: How often do you change your membranes
Post by: leapstallbuildings on January 23, 2010, 10:08:42 pm

Sounds a bit soon to me if you have been changing pre filters when you're meant to.  If you haven't then 13 months sounds Ok.  I would be a bit disappointed to get less than 2 years from membranes - and would expect rather more assuming I had changed pre filters when necessary.

Title: Re: How often do you change your membranes
Post by: sparklebright on January 23, 2010, 11:30:35 pm

Must admit I didn't change the pre-filters for about 8 months, so maybe I have ruined them

My TDS is around 380ppm pre treatment and 15ppm after

Title: Re: How often do you change your membranes
Post by: Londoner on January 24, 2010, 10:41:40 am

My membrane is over three years old.