Kids Gardening Set

I just filled the pool with tap water and the sun shines. I know it will take a day or two to adjust to room temperature, but it heats up more quickly, with or without the lid blue PVC????

I just want to cover the night if the temperature drops below 70. solar fraction are not specifically designed to heat sheets

Depends on the external heat on the weather. in general, yes.

My concern would be that small can fall. with lid, a small child would not stand a chance!

Covers must be very strong!

Falling back on a bulk is worse than falling into the water because it shrink wrap the body inhibit the movement!

A black lid heat the water a little faster, but will dissipate the heat during the night.
Definitely not a good idea to have a blanket on when children are unsupervised.

The sun is warm, without the lid. Add a few buckets of hot water. Put the lid on the night to keep things icky.