Pool Renovation

ZOSO

New member
Apr 8, 2025
2
Long Island, NY
I have an 18x36 gunite pool that need a 'renovation' - it hasn't been opened for many years. I am being told by a pool guy that I should clean and marble dust the pool. Is it common to 're-gunite' the pool first, then marble dust it? Is marble dust done instead of a 're-gunite? How often does a pool need to be 're-gunited'? Any guess as to the cost for 1-'re-gunite' and 2- marble dust? Thanks in advance, guys!
 
Never heard of re-guniting a pool. Pools don’t need that or marble dust.

Either your pool plaster is good or you need a replaster.

Plaster can be cleaned in a few different ways depending on its age and condition.
 
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Gunite is what is used to create the shell for the pool over rebar. Plaster is applied to the gunite surface to complete the pool (simple terms).
There are many types of plaster than can be used, Marble Dust is one form of plaster. There are other options.

When you replace plaster, you should do a full chip out of the old plaster down to the gunite, then have the new plaster surface, whatever product you want, applied...