The solar storage tank is probably
the most frequently neglected part of a standard solar hot water or thermal
heating system. As recommended by most manufacturers,
tanks — especially in commercial applications — should be inspected on a
ASME tanks can generally be drained, flushed, cleaned, inspected and have
a new gasket installed within one working day. Inspections
can determine the condition of the existing lining. Service may be
recommended. Glass-lined line tanks, for
instance, may require new anode rods. Slightly cracked concrete-lined
vessels may require "grind, chip and touchup" with a skim coat of
Pre-Krete tank lining formula. More severely worn linings such
as those often found in phenolic or epoxy-lined tanks may require a complete "stripping and relining" with Pre-Krete.
Lining a water
storage tank with Pre-Krete will extend its useful life dramatically.
Environmental Solar is the Southern California distributor for Pre-Krete.
Patterson-Kelley, an internationally recognized manufacturer of water heaters,
warranties its factory-lined tanks for 20 years. Patterson-Kelley is a division of Harsco, Inc. Pocono Fabricators,
a division of Patterson-Kelley, has been producing Pre-Krete (www.prekrete.com)
for over 50 years. For a short history of water-tank lining here
in the United States, see Boileau's history.