Are plastic pressure tanks better than steel tanks?
NO. Simply put, all first class pressure tanks are steel (metal) pressure tanks. (F.Y.I. water in the tank does not touch the steel. Water is enclosed in a soft bladder, surrounded by air, then enclosed in the steel housing of the tank. Therefore there are no rusting problems.) Metal tanks are superior due to that their air pressue is not easily lost (creeps out) like ecomomic plastic tanks. The only advantage of plastic tanks is that they are light in weight.
