... effect is good when the piping is non-magnetic (SUS, copper, PVC, etc.)Magsuin contains a powerful permanent magnet, so it ... water tanks, electric water heaters, heaters, bathrooms, heated swimming pools, solar systemsWater supply systems (drinking water)Water holding tanks, elevated water tanks, well water, pools, bathsOtherAgriculture, paddy cultivation, spas, water tanks ...