floating a gunite pool

Is it possible for a filled gunite pool to float?  I have come across asituation where it appears that a pool (not built by me) has floatedwhile the water was still about 3/4 full.  Has anyone had any experiencewith this or have any ideas where to go to find out some information.

You need to be a member of Pool Genius Network to add comments!

Join Pool Genius Network

Email me when people reply –

Replies

  • The Answer to your Question is yes,

    Concrete loses 40% 0f its weight in water and depending and the pools displacement it could float when 3/4 full.

    Kiwi Norman

    www.poolquartz.co.nz

  • it absolutely can. what makes you think it has floated? has it lifted evenly.

    tony c
    www.monogramcustompools.com
  • It is possible for a gunite pool to float. Anytime that you can, check the hydrostat. Sometimes, I pull the hydrostst and clean the 12" -18" vert. pipe under it. Never replace a hydrostat with a threaded plug.

    Just because the pool now has 3/4 of the water in it, does not mean that was the water level when it floated.

    Archimedes Principal--- When the weight of the structure is less that the weight of the water that it displaces---the structure will float.

    A boat is a structure that holds water out. A pool is a structure that holds water in. Both should be water tight.


    A floated pool is typically higher in the deep end area. The deep end floats first. The mud/dirt/gravel sloughs under the deep end and holds it up, in the wrong position.  

    What is your goal?

  • A filled concrete pool can float.  The vessel must be lighter than the water it displaces.

  • Do you know what the ground water table is? Are you near water? I once emptied a pool and drilled a 3/4" hole in the shallow end and the ground water shot up 8'. That was 5 1/2' past the deck. When we checked, the pool was in the middle of an underground steam. Fortunately the builder had an 2"under suction line that we could plumb a diaphragm pump up to. The pump ran for 2 weeks with no reduction in volume. That being said, it seems unlikely that only a reduction of 1/4 of the pool would float the pool. Any earthquakes in the past? Or did the pool settle on one end?
This reply was deleted.

The LSI is Reliable

Using the Langelier Saturation Index as a guide for maintaining proper pool water balance and to protect pool plaster has become a mainstay in our industry, and we believe, for good reason.

We at onBalance have conducted several LSI…

Read more…

Aqua Genie

I have a real old Aqua Genie skimmer with a control valve.

My issue is there is no plumbing schematics detailing how to connect the feed inside the skimmer through the control assembly and into the bottom of the hopper.  If anyone knows…

Read more…
Comments: 0