Why won’t my pump pump?
QHaving removed the Shurflow Model 200 drain pump from the shower unit to clear it of debris, it now runs but there is a lack of ‘suck’ on the inlet side. Any thoughts? BRIAN SANDERS, via email
ATONY REPLIES… Even if you are using a strainer between the shower and pump, in my view, this pump is unsuitable for the task. It has three small diaphragm pumps inside, each with two even smaller valves, which jam open easily (eg with a piece of hair).
A Whale Gulper shower pump, with just one very large diaphragm and a pair of large virtually self-cleaning valves, should give you much more reliability.