https://slavyanski.net/sb2020/story.php?title=pool-pumps-for-solar-heating-systems-8 Not only do they produce a barrier to entering the pool, but they also signify to others that the pool is "closed" for that winter without to go near one. Having a swimming pool is lots of fun, on the can even be dangerous this is great for unsupervised children and kids. An alternative would be to buy salt systems or electric oxidation piece of equipment. Sun, 24 Sep 2023 15:41:36 UTC en