Laing DDC Testing Help Please

[Guitarman0]

I am planning on testing my Laing DDC pump tomorrow (for leaks as I have had some problems with it). I have read that you must have at least one block installed for the pump or it may become damaged, but I want to run the pump with the res feeding directly to the pump which then spurts water into the sink. If I did this I am assuming I would need to provide some resistance for the pump, so would kinking the tube enough so water can pass, but there is resistance provide enough resistance?

Cheers

 

[JonJ678]

As long as it's full of water I'm pretty certain it'll be fine. I set up three in a row squirting water into a bucket to try to work out which ones were performing best a while back, I don't think it's hurt any of them.

By all means stick a waterblock downstream of the pump if you like though, it wont add much time to the test.