Plumbing location question & why is plumbing run along bottom of pool wall?

[kalgwl]

In the middle of a DIY vinyl pool and getting some help from a local pool builder & have a question about the plumbing he completed.
He ran all plumbing in the bottom of the over-dig.
My question is, why not run it at the height of the returns or bottom of shimmer?
Basically, as soon as you come off a connection such as a return or skimmer, make a 90 turn instead of 90 to the floor & then 90 toward pool pad. All of the plumbing would be running at same height as all connections & several 90 degree fittings would be eliminated.
It will also be an easier dig it you ever need to make a repair. Still deep enough to keep pipes from freezing but shallow enough to help make repairs.
Someone help me & tell me why most pipes are run at the lowest point in the over-dig..

 

[kimkats]

Can you share a pic of what you mean so we really know what you are saying. Want to make sure everyone is on the same page.

Kim

 

[Pool_Medic]

Pretty standard in a vinyl pool to run the lines on top of the gravel fill on perimeter of pool, basically 2-3” under any decking.

 

[kalgwl]

Pool medic seems to understand what I'm asking.

I'm thinking of re-plumbing my pool to get rid of some of the unneeded 90 degree connectionns. If I ran the plumbing at same height as returns & skimmers everything would flow more efficiently

 

[kalgwl]

Kim, I will post a picture tomorrow.
I'm basically wondering why my plumbing was ran in the bottom of the overdig instead of level with return & skimmer (both are halfway down the wall)

 

[kefjens]

I don’t know why but mine was built exactly the same as yours. I didn’t think about it during the build but now that you asked the question I’m curious as well.

 

[Pool_Medic]

Think of it this way, the bottom of your skimmer is about 2.5’ below the top edge of your pool, a fitting goes in there to which an elbow is added. That’s why the piping ends up being 3’ under your cement or pavers.