Melodi 5 My new apartment’s bath pipes have probably never been cleaned before, as when I tried taking a bath the other day, the water was green and had a bunch of gunk floating in it.Today, I started the process of cleaning the pipes. This product was easy to use (fill tub with cold water, empty packet contents, “reheat tub” 5 minutes, wait 10 minutes, drain, refill tub, “reheat tub” 5 minutes, drain, rinse). Unfortunately, because of how dirty my pipes were, I ended up using all 3 packets over the course of the afternoon. But! Things seem so much cleaner now! I wish I had one more packet, but that’s because my bath was amazingly dirty. The water appears clean now!If you need a maintenance product, this will be perfect! If you have a really dirty tub, be prepared to repeat the process until everything is clean.