Clean It Up

UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: cybersye on August 10, 2008, 03:07:35 pm

Title: how long to backflush a merlin for ?
Post by: cybersye on August 10, 2008, 03:07:35 pm
Finally got round to working out how to backflush the merlin today. The unit is just over 2 years old, produced a tds of 30 when new ( my supply is very high though, about 350 - 400) It had risen to 42, have just changed pre filter and backflushed for 20 mins with pure from vans tank through di, read the waste a few times until it was down to 000. Re-assembled it all and initially it was producing 32 but has now risen back to 42. Have I backflushed long enough? if not how long?  or is it more likely, as I suspect, that the membranes are gradually deteriorating ?
Thanks
Simon
Title: Re: how long to backflush a merlin for ?
Post by: cybersye on August 11, 2008, 12:04:02 pm
anyone?
Title: Re: how long to backflush a merlin for ?
Post by: TennetClean on August 11, 2008, 12:41:22 pm
2 years of good use?  If I were you I'd forget about flushing and just buy a couple a new membranes, they're only £66 each.  Merlin needs two of em I think.

After all, thats a running cost of ...£1.27 per week

BARGAIN!
Title: Re: how long to backflush a merlin for ?
Post by: cybersye on August 11, 2008, 04:59:31 pm
2 years of good use?  If I were you I'd forget about flushing and just buy a couple a new membranes, they're only £66 each.  Merlin needs two of em I think.

After all, thats a running cost of ...£1.27 per week

BARGAIN!

cheers tennet, yeh i get what your saying, I will buy new membranes, had just wondered if I'd flushed it long enough, had i have done this earlier and more routinely then maybe its performance may have been better. Had searched back through posts for info on flushing and thought of the members on here with merlin ro's someone may have been able to answer the question for me.
Cheers anyhow
Simon
Title: Re: how long to backflush a merlin for ?
Post by: darragh windows on August 11, 2008, 06:55:54 pm
sureclean sell the backwash kit for merlin
Title: Re: how long to backflush a merlin for ?
Post by: cybersye on August 11, 2008, 07:17:23 pm
sureclean sell the backwash kit for merlin
thanks
but maybe i should re-phrase the question : who has a merlin and backwashes it? if you do, then how long for ?