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UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: ftp on August 15, 2008, 09:50:13 pm

Title: Oldest Membranes
Post by: ftp on August 15, 2008, 09:50:13 pm
Who's got the oldest membranes and at what tds in?
Mine are about eighteen months old with tds in around 360 should i be thinking of replacing them?
Title: Re: Oldest Membranes
Post by: Alex Gardiner on August 15, 2008, 09:52:29 pm
Mine are about 18 months old as well, tds in at 75.  Regularly flushed I should get the same again.
Title: Re: Oldest Membranes
Post by: clean on August 16, 2008, 08:46:51 am
My merlin is about 3 and a half years old,still got both original membranes and pre-filter :o and tds is still the same  ;D  ;)
Title: Re: Oldest Membranes
Post by: Londoner on August 16, 2008, 10:41:16 am
Mines two and a half years old now and still going strong.

I'm going to regret saying that
Title: Re: Oldest Membranes
Post by: S.A.J on August 16, 2008, 11:15:40 am
My ionic ro is 7 1/2 years old tds in is 90.

Stuart