Aquasafe maintenance

[Matt]

Quoting from the FAQ Ed @ Aquasafe recently resent me:

Flush once a month for 10-15 mins. For normal water. High Calcium...well calcium cakes everything...membranes are no exception....high TDS....some customers have 1800...flush early and often. Low PSI...early and often.

The DI will slowly change colour, but TDS is really your best guide, I suppose.