But if its worked ok since 1970 and no mucky hot water, and provided 1 way valve keeps going in the cylinder. And the people are my best friends. And if I print out our chat. Then if it works ok we will all know that in the future the pump needs refiting on the other pipe pulling instead of...
Currently its on a glowworm 4 port boiler, with pump on return. What problem would I create by leaving pump where it is on the 3 port injector tee baxi. Sorry for being a pain mate ! :D
I was wooried that the injector tee that links the hw return and ch return might be influencent by having the pump so near it, do you understand, cause it shows on diagram that it should be on the flow !