We tried the vinegar solution after rebuilding the completee Blake Lavac
system on Sedna. A cup or so of white vinegar every couple weeks overnight.
After 6 months or so we had to rebuild
the Henderson MKV pump as the diaphragm
and valves had gotten very stiff and lost
their pliability and no longer worked. In fact the valves failed to the point that a large geyser of "water" would be forced back through the head
. NOT PRETTY!!
We used no
solutions during this time besides vinegar. It is my thought the acid in the vinegar reacted witht he nitrile diaphragm
and valves drying them out.
We did not use vinegar the 6 years before and did experience scale but the pump did not break down either. This is just our experience with vinegar and a Lavac
system. Other systems may have a different compound for the seals
and pump bellows so mileage may vary.
I hate rebuilding the head.