I manage an apartment complex where the water provided is very hard 17.1 (ppm). The 100 gal. commercial gas water heaters are lasting less then a year, then must be replaced due to sediment build up. We have tryed frequent flushings, water softners and "zeta Rod" nothing seems to work, any suggestions?
With a softener and possibly a filter ahead of the tank, it should take care of the problem, at least for more than a years use. With that hard of water and sediment, don't evn think about a tankless. Most manufacturers will state flat out that they will clog very quickly. The small tubing used in them is not tolerant of solids.
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