We've never left the solution in longer then the time in the manual. The unit has been in service for about 2 years of full time cruising. I functioned well for a bout a year and a half. Then we started having the extended cycle issue. I've acid flushed it I think a total of 6 times. Maybe five, always following the directions (but there were two set of direction and I now have the newest).

I did email Vic and will most likel get the same answer from him.

Thanks Peggy.

This time when we acid flush it I'll avg your time and leave it in for 1 1/2 hours. Will report back on the results.

BTW is there any other acid I can use in a different mixture aka Vineger. Much better to carry on the boat.

Thanks,
Dave

Go Slow
Sail Far
Stay Long