Main drain plumbing question

[JC707]

Hi folks. Just got back from Hawaii and was anxious to see the plumbing/electrical/gas job that was done the day we left for the airport.

I saw 3 plumbing lines for the deep end main drains and it peaked my curiosity as we only have 2 main drains.

I walked down carefully over the rebar and discovered the smaller PVC pipe was capped with a threaded cap and I dug out the rocks a bit and noticed holes were drilled into the PVC on all sides.

Does anyone know what this pipe might be for? I tried to dig deep down but could not get to the bottom. It was dark out so I may attempt to dig further. I did notice pipe glue on the treaded cap though.

Thanks!

 

[AQUA~HOLICS]

Hydrostatic valve, designed to relieve pressure from around the pool shell (Shotcrete) from ground water forces when the shell is empty.
Also I would ask the rebar crew to install more concrete dobie spacers below the cage.

 

[JC707]

Thanks!

We have Gunite Monday and I was going to ask PB about adding more spacers....not sure if they can make it happen by Monday morning but lucky for me Rebar crew left a lot in my yard they never cleaned up so I plan to add some more in the deep end where they didn't put many.

 

[JC707]

Hydrostatic valve, designed to relieve pressure from around the pool shell (Shotcrete) from ground water forces when the shell is empty.
Also I would ask the rebar crew to install more concrete dobie spacers below the cage.

Is there a good standard to follow as far as spacing goes? I will take some pics to send to builder tomorrow to see if they can add some more but if not I will use the 10 or so extra the rebar crew left and throw them under the rebar cage prior to Mondays Gunite pour.

 

[AQUA~HOLICS]

If you can walk on the cage without the rebar touching the floor you have enough.

 

[AQUA~HOLICS]

Also, the rebar crossings have wire ties, be sure the cut ends (pig tails) do not point up to the surface.
This will help ensure a less chance of a bleeder (rust from coming in contact with the pool water) in the future.

 

[AQUA~HOLICS]

Hydration of the Shotcrete is vitally important after application, the product needs to stay wet continuously for a minimum of 7 days.
This will also help insure a high PSI strength at the end of 28 days.
Do you know what PSI the Shotcrete is that’s going to be delivered?

 

[AQUA~HOLICS]

Sorry one last comment, if you are having an exposed aggregate plaster have the Shotcrete crew 45 all the edges and not leave them at a 90, this will ensure the plaster crew will be able to have enough product on the radius.

 

[Texas Splash]

if you are having an exposed aggregate plaster have the Shotcrete crew 45 all the edges and not leave them at a 90, this will ensure the plaster crew will be able to have enough product on the radius.

Geez, the tips we pick-up on this forum is amazing. We learn everyday. Great info.

 

[JC707]

Thank you for the amazing tips!

 

[cfherrman]

I hope to build a pool one day and learning this stuff is pretty cool, but I'll have to remember it as well.

 

[JC707]

Sorry one last comment, if you are having an exposed aggregate plaster have the Shotcrete crew 45 all the edges and not leave them at a 90, this will ensure the plaster crew will be able to have enough product on the radius.View attachment 494301View attachment 494307

By exposed aggregate plaster, would this be a product like pebblesheen? That is what we are getting.

 

[AQUA~HOLICS]

Yes, exposed aggregate not marcite.
Pebble-Fina is the smoothest finish without being polished due to the size of the aggregate.

 

[JC707]

Great pointer on the wire ties for rebar.

I just went out and a ton of the ties are sticking up/out.

I plan to hop in and fix every single tie before gunite tomorrow.