I am remounting an older PUR40E which had not been used for some time (8 years) and when there is no air in the system appears to produce water
at the correct rate and has good taste, need to get a TDS to check for the quality.
At any rate, the unit is a bit intermittent, once running correctly it keeps making water
, turning it on and off is not a problem.
However, it's ability to clear air out of the system appears to be the issue. I have it mounted with the drive motor
pointed up and the membrane horizontal with the motor
drive above it.
I suspect that the unit just needs new seals
, while it only has about 400 hours on it (have an hour meter on it) they are the original seals
from 1997 as is the membrane.
I just wanted to make sure that I have not mounted the unit in a way which makes clearing air out more difficult.
I did notice that when flipping the pressure release valve I get a bit of water from the pin actuated by the valve. I replaced the o-rings for the valve (new design with shoulder) mount to the watermaker
(the large oval one and the small one around the pin) with silicone grease and it is much better. No leakage at all when down but an occasional drop when up (bypass).
Otherwise, a 15 year old membrane which had been pickled 8 years ago and set on a cool shelf and then forgotten about.
Oh, I am currently running out of a bucket of salt water
right under the watermaker
to verify it is working correctly.
Thanks for any thoughts on the mounting and the question of if it is normal for the unit to have a bit of a weap with the bypass valve open (i.e. pressure release).