This sword has two edges. What is the RC of the dwelling ? say 300.000x80% 240,000 K required
What is the RC of the pool and all the apron 100,000 400,000 x80% 320.000 required
Insurance carried 240,000 240 over 320 is 25% non compliance x the loss
Loss to pool is $20,000. x non compliance is 25% net is $15,000
Limit on 10% is 24,000K so pay 100% of loss under 24 k is 20K, except for freezing then none. Just because the apron touches the house, I will bet it does not have grade beam and is a 4-5 inch slab like a poured patio.
BUT it will always be a pool , UNLESS it is under the roof line of the dwelling with walls.