1.5" female outlet out the top of a lake pump. Mounted tight, plumbed tight., taped heavily. Why does the nipple go loose every now and again? Note the dirty spray on the elbow from the gap. Sch80 nipp.
Welcome to the site UF. Describe pump maintenance for me. Thanks.Teflon tape is a thread lubricant, not sealant. Using the sch 80 nipple will work fine as long as you apply pipe sealant when you replace it. If you are getting enough vibratioin to have a fitting come loose it's time to do some pump maintenance.
He is suggesting that the vibration may be from worn seals/bearings, out of balance impeller, etc. It may be time to re-build the pump in the near future. Some guys are good enough to do motor maintenance/re-building too. I never have been. If the motor/motor winding is bad, I call for a new motor and scrap the old one at the salvage yard. On that note, motor windings are a real good source of cash as copper scrap.Welcome to the site UF. Describe pump maintenance for me. Thanks.