1.25" unions and bulkhead ??

[Husky_1]

So, I am looking at the plumbing that will be used for my CL intake and notice that the opening a 1 1/4 union is about 1 1/8, where the opening on the 1 1/4 PVC pipe is +- 1 3/8's.

When pumps say to use a 1 1/4 pipe, do they assume that there will be a tad more restriction because of plumbing pieces like ball valves and unions?


2nd thing, how tight is right for bulkheads. Should it be tightened down as hard as you can with your hands only or should I tighten with my hand then a bit more with a wrench? (1/8 turn)
Thanks,
Dale

 

[nyvp]

what uses 1 1/4 ? usual 1 or 1.5".

I would hand tighten

 

[Abengochea]

Im with joe on this one, usually for the big pumps its a 1.5 and not elbows for atleast six inches (on the input side of the pump) the output of the pump doesnt matter if u put an elbow coming out of the pump

 

[Husky_1]

<a href=showthread.php?s=&postid=9847814#post9847814 target=_blank>Originally posted</a> by nyvp
what uses 1 1/4 ? usual 1 or 1.5".

I would hand tighten

Ocean runner 6500 uses 1 1/4, but I drilled and installed a 1 1/2 bh incase I wanted to use another pump down the road.


Abengochea, See and I thought it was 6" from output and elbows did not matter for input. Thanks for the heads up, I will definitely research that point more...Does that 6" also have to exclude unions and ball valves? I want to have them right before the pump for easy maintenance.

 

[nyvp]

<a href=showthread.php?s=&postid=9851113#post9851113 target=_blank>Originally posted</a> by Husky_1
Ocean runner 6500 uses 1 1/4, but I drilled and installed a 1 1/2 bh incase I wanted to use another pump down the road.


Abengochea, See and I thought it was 6" from output and elbows did not matter for input. Thanks for the heads up, I will definitely research that point more...Does that 6" also have to exclude unions and ball valves? I want to have them right before the pump for easy maintenance.

unions are fine before 6"
I also have 2"then right before my dart which has a 1 1/2 input decreased it. so if you want do the same with 1 1/2 and right before the pump decrease it to 1 1/4. Much easier to find 1 1/2 items then 1 1/4

 

[Husky_1]

Hey NYVP, thanks for the info, I guess by the time you add the union and the ball valve 6" is already gone. I think I may go with the 1 1/2, all the way down and then decrease right before like you said. I would hate to have any flow restrictions because I wanted to save a couple dollars by using the 1 1/4 union/ballvalves over 1 1/2.



BTW, Lowes had a full supply of the 1 1/4 stuff...