[leapstallbuildings]

I wondered why my  merlin (on low pressure) had gradually drifted from about 40 litres an hour of pure down to about 15.  It had been a fairly gradual decline over a year but had recently accelerated.
Well I finally let the moths fly out of my wallet and changed the membranes.  They were a very dirty dark brown - oops !!  I put new ones in and POW - back up to where it was a couple of years back.
Serves me right for being a tightwad 

[smearo]

is it quie straight forward changing the filters over on the merlin

[leapstallbuildings]

is it quie straight forward changing the filters over on the merlin

Yes.  No problem.  It's important to ensure the they are seated centrally and done up pretty tight.  The layout on mine is top housing contains carbon pre-filter.  Lower two housings contain membranes.  I understand that sometimes people do slightly different configurations though.
N.B.  I have an iron and a sediment pre-filter before the merlin housings.

[Sapphire Window Cleaning]

is it quie straight forward changing the filters over on the merlin

Yes.  No problem.  It's important to ensure the they are seated centrally and done up pretty tight.  The layout on mine is top housing contains carbon pre-filter.  Lower two housings contain membranes.  I understand that sometimes people do slightly different configurations though.
N.B.  I have an iron and a sediment pre-filter before the merlin housings.

Do you mean you have your DI before the Merlin?



Matt

[leapstallbuildings]

is it quie straight forward changing the filters over on the merlin

Yes.  No problem.  It's important to ensure the they are seated centrally and done up pretty tight.  The layout on mine is top housing contains carbon pre-filter.  Lower two housings contain membranes.  I understand that sometimes people do slightly different configurations though.
N.B.  I have an iron and a sediment pre-filter before the merlin housings.

Do you mean you have your DI before the Merlin?



Matt

No.  The DI comes after the RO - though I haven't mentionerd the DI in my post.  I can't see why you thought that from my post.  ??