How tight should the connection be at the outlet side of the filter valve? I have a Jacuzzi 7-way dial valve, and there is a small drip at the outlet connection. When I turn off the pump, I can hear air sucking back into the filter, and I think it is at this connection. I'm going to replace the o-ring and re-tighten the connection. Should it be hand tight, or should I use channel locks and tighten it a little more? It seems to be hand tight now. Thanks.