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Old 11-27-2012, 07:35 PM   #11
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Don't get me wrong, I'm not calling anyone silly for being concerned about it. I just want to make sure people are aware that the threads don't melt off the pump by looking at it funny. I've changed out the metal fittings on my march head at least three times since I got it. Teflon tape and not cross threading is the key.
How many wraps around with the teflon tape? How many turns past when you feel first resistance? I (obviously) don't want to cross-thread, and I want to have a tight enough seal so that it won't leak.


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Old 11-28-2012, 04:02 AM   #12
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It really doesn't need to be very tight to seal. 5 wraps of white teflon tape or 3 wraps of the yellow or pink. Tighten it with your hand, no wrench needed.


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Old 11-29-2012, 04:02 PM   #13
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Without any tape, my type F camlock on the pump head gets tight at only 1/3 of a turn from the start. If I put on tape and hand tighten, I might get a total of a 2/3 turn from the start until it is tight and I stop. Does that seem right...is that enough?
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Old 11-29-2012, 05:25 PM   #14
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Hmm, I hope you mean camlock type A because an F is male thread just like the March. 2/3rds of a turn doesn't seem right to me. I suppose there is some tolerance issues at work here and being that your pump is new, the threads are a little too rough for a hand tightening to be good enough. The absolute most important thing is to be sure that you're not cross threading before you put a wrench on the fitting.
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Old 11-29-2012, 09:44 PM   #15
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I bought a used march a few years ago on the cheap because it was cross threaded. Turned out he only cross threaded a very small amount of threads so I just ground them off with a dremel. As long as you dont cross thread it down all the threads its not a big deal.
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Old 12-01-2012, 12:06 AM   #16
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Quote:
Originally Posted by Bobby_M View Post
Hmm, I hope you mean camlock type A because an F is male thread just like the March. 2/3rds of a turn doesn't seem right to me. I suppose there is some tolerance issues at work here and being that your pump is new, the threads are a little too rough for a hand tightening to be good enough. The absolute most important thing is to be sure that you're not cross threading before you put a wrench on the fitting.
Oops, yes...it is a Camlock Type A (not F). I guess I'll just have to tighten until the point I don't have a leak, and be careful to not cross-thread. Thanks for the replies.
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Old 12-02-2012, 04:35 AM   #17
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Thanks to WalterAtMarchPump's help for a replacement housing, everything fits like you'd expect now and I'm good to go. I attached my Type A Camlock to the PUMP-IN and my 3-piece ball valve to the PUMP-OUT (both with 3 wraps of teflon tape and a hand tighten) without any problems at all, super smooth.

I just have to say that March has stellar customer service, and I'm a very happy customer.


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