[easy clean]

my 300 gpd system use to produce 1000 litres in 12 -14 hours before christmas. no it's only producing 150 litres in 20 hours today. i've put new filters in it and water supply is ok to ro. water is flowing through pre filters ok as well but a little slow through membranes (but to be honest not sure how fast it should go through menbranes) any one else having these probs and if so what have you done to rectify the problem?

many thanks

jon

[Ian Lancaster]

You haven't let your RO membranes freeze up, have you?  this will knacker them.

Other than that, I can only think of lack of flushing allowing membranes to clog up.

Do you have a booster pump?