Hey Roger what's the part # & where can I get (prem aq etc) the plastic cap that fits onto the bottom of the impeller & sits on the red o-ring of the stream 6100? I've had it for a few years now & it's gotten a little too beat up from prying it off for cleaning purposes-- now it won't pop back on--- the pump still works with the cap setting on it-- but has a low freq hum --- it's always been silent until now. It's an excellent workhorse though
Thanks in advance & keep up the great job! John

Thanks in advance & keep up the great job! John