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hoskm01
08-03-2008, 09:39 PM
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.

Mike Leary
08-03-2008, 09:44 PM
Pros use brass. :hammerhead::hammerhead::hammerhead:
Nice teflon tape display, too.:rolleyes:

Wet_Boots
08-03-2008, 09:49 PM
Or galvanized, depending. I don't want plastic threaded into a pump.

hoskm01
08-03-2008, 09:50 PM
Pros use brass. :hammerhead::hammerhead::hammerhead:
Nice teflon tape display, too.:rolleyes:
I just showed up, I didnt give birth to the thing.

michigander
08-03-2008, 10:27 PM
Are you sure the nipple didn't distort from the heat of a zone not turning on? Are all zones working OK? :confused:

hoskm01
08-03-2008, 10:29 PM
From that elbow down the line, everything is golden. Compared it to a new one and caliper is identical, not distorted. Tape appeared to have been doing the work for a while.

Mike Leary
08-03-2008, 10:30 PM
I just showed up, I didnt give birth to the thing.

Well, you better tell us these things, we always blame the sprinkler guy. I'd say heat and/or vibration, go brass, my son.

hoskm01
08-03-2008, 10:48 PM
Well, you better tell us these things, we always blame the sprinkler guy. I'd say heat and/or vibration, go brass, my son.
Sold. More metal the better.

Waterit
08-03-2008, 10:50 PM
And use paste instead of tape.

hoskm01
08-03-2008, 10:56 PM
And use paste instead of tape.

I like paste!

http://www.geocities.com/TelevisionCity/7333/pictures02/rlph_patch.jpg

The Urban Farmer
08-03-2008, 11:13 PM
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.

FIMCO-MEISTER
08-04-2008, 06:04 AM
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.

Welcome to the site UF. Describe pump maintenance for me. Thanks.

AI Inc
08-04-2008, 06:10 AM
And use paste instead of tape.

I like to use both.

bicmudpuppy
08-04-2008, 07:38 AM
Welcome to the site UF. Describe pump maintenance for me. Thanks.

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.

Flow Control
08-04-2008, 07:52 AM
I just showed up, I didnt give birth to the thing.

:laugh::laugh::laugh::laugh: