need help plumbing a sump (pipe size etc.)

[markush]

A quick background on my set up and what i want to do....90 AGA with the megaflow overflow. I need to plump from the overflow to a sump which will be placed in the basement. I'll have about 10 feet of head and a horizontal run of about 12 feet.

now my questions...starting at the drain bulkhead I'm using the Megaflow accessory kit which has a 1" bulkhead with a 1 1/4" barbed fitting for the plumbing should i stick with this bulkhead or change it out to a 1" slip/threaded bulkhead...is the male threading on the 1" slip/thread bulkheads 1 1/4"?

From there i need to plumb in a valve. So here's my thinking on the fittings....slip/threaded bulkhead plumbed to a 1 1/4" ball valve then run 1 1/4" pipe or tubing to the sump.....should i use rigid PVC for the horizontal run or can i run vinyl for the whole thing? OR should i just drop it to 1" at the bulkhead and use all 1"fittings and tube/pipe?

[AngeloM3]

You'll get a different answer from everyone....

Just plumb it however you like to. Theres really no magic or tricks behind plumbing.

[costa13]

Depends how much flow you want. Here is how much flow each size pvc will give you

Stand pipe Size Gravity Flow Rating
3/4" 330 gph
1" 600 gph
1 1/4" 910 gph
1 1/2" 1300 gph
1 3/4" 1800 gph
2" 2350 gph
2 1/4" 2960 gph
2 1/2" 3650 gph
2 3/4" 4450 gph
3" 5280 gph

[Marco3995]

but dont forget with every action there is a reaction. As you increase pipe size you reduce the velocity of the water in the line. So if you are thinking of using the main circulation pump as a powerhead as well you may want to go for a smaller pipe size.

[I am a giraffe]

Sorry, wrong post.

[xtrstangx]

<a href=showthread.php?s=&postid=9670416#post9670416 target=_blank>Originally posted</a> by Marco3995
but dont forget with every action there is a reaction. As you increase pipe size you reduce the velocity of the water in the line. So if you are thinking of using the main circulation pump as a powerhead as well you may want to go for a smaller pipe size.

My rule of plumbing:
Run as big of a pipe (most of the time for drains/returns 1.5") as possible for as long as possible. If its on the return and you want a stronger jet coming out, then reduce the pipe size right before you go into the tank. You'll maximize your flow and still keep the strength you want.