Just wanted to share something I learned the hard way. If you've got a tankless water heater, you really gotta flush it out once a year or so. I ignored mine for like three years (oops), and the buildup was pretty nasty. Anyway, vinegar works wonders—just pump it through for about an hour and you're good. Curious if anyone else has their own little tricks or shortcuts for keeping these things clean?
"I ignored mine for like three years (oops), and the buildup was pretty nasty."
Haha, trust me, you're not alone—I've seen way worse. Vinegar's solid, but if you ever run into stubborn buildup, a mild citric acid solution can really break things down nicely. Just don't overdo it... moderation's key.
Citric acid, huh? Never tried that myself—vinegar usually does the trick. But does citric acid risk damaging seals or components over time? Seen some DIY fixes go sideways... just wanna be cautious.