Quote:
Originally posted by airspirit
The swiftech blocks contain large amounts of anodized aluminum. These coatings have been known to come off and wear over time allowing for internal corrosion. I would recommend an anticorrosion chemical as well as a biocide to keep your system clean. Hyperlube is a very nice additive since it will not stain your tubing and prevents corrosion extremely well. Adding some commercial non-chlorine non-bromine hot tub sanitizer in small amounts will also help in preventing algae buildup.
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I have yet to see any pics or even heard of anybody having problems with the anodized coating on the swiftech blocks
