The other day we received an email from ErnieB_121 who had a question about filtering hot water before use in his restaurant.
Hi, I hope you can help me with a problem I’m having in my restaurant. I’m getting ridiculous amounts of buildup clogging the prefilter things on the hot water line of my dishwasher and tell the truth I’m sick of replacing the d#amn things. Not that they cost a lot, but it’s a pain in the #ass to get to them and one day I’m afraid I might strip the fittings and then I’ll REALLY have a problem. So do they make filters for hot water lines? All the filters I’ve seen in stores work for cold water lines only. Thanks. ErnieB_121
Thank you very much, Ernie, for a colorful email. Ha ha. We can totally understand your frustration with having to replace hard-to-reach inline filters.
We believe you may find a filter housing and filter for your application at WaterFilters.Net, an online retailer of commercial and residential water filtration products. When last we checked they carried three different styles of housings for hot water filters and a good assortment of filters to go in them.
One thing you failed to mention Ernie… Where does the residue clogging your lines come from? What does it consist of? Calcium? Iron? Manganese? Radioactive sludge from the planet Mars? Not poking fun at you, just trying to make a point: you need to test your hot water — after it cools — and find out what sort of deposits you have so you can purchase the correct filter for your needs.
The links below will take you to products you may find useful when attempting to determine what contaminant(s) you have in your hot water line:
As with any water quality investigation, if you have reason to suspect contamination of your water supply with potentially harmful compounds and/or chemicals, we highly recommend having your water tested by a certified water testing laboratory such as National Testing Laboratories.