Every 5-6 months like clockwork, seems I have to tighten the coupling for inlet to my main filter pump (Pentair Intelliflow VSP). I only know because there are bubbles coming out of the returns. The first time it happened we had cold weather (for So Cal) so temps in the high 30's -- I figured the o-ring or rubber inside may have contracted. Here I am again in May and it's 80-90F and happened again. Is this a normal thing just due to vibration? I marked the coupler with a sharpie marker this time so I can see if it moves the next few months!
Curious if this is a "normal" sort of thing or if I've got a bigger problem or if there's a perm fix.
Curious if this is a "normal" sort of thing or if I've got a bigger problem or if there's a perm fix.