Longhair - is it available at local hardware stores or only available through plumbing supply houses?
Just curious as some supply houses don't sell to the public
It looks like it's for sale on the link you posted, or do you have to be a licensed plumber to buy from them?I don't think so but I think you can buy online at like Amazon, I work for a plumbing company and get it from a supply house.
It works great as you can see if you read the reviews in the link I posted. You must use hot tap water and it generates heat thru chemical reaction and boils thru grease and soap scum.
Amazes me every time I use it!
I would also recommend you install a quick vent if you live in an older home lacking proper venting. > https://www.bhg.com/home-improvement/plumbing/how-to-install-air-admittance-valve/
You can also solve some drain issues by running a snake (full sized, like 3") directly down the vent pipe from the roof.
It takes more cable, but may prevent a terrible mess in the house.
It looks like it's for sale on the link you posted, or do you have to be a licensed plumber to buy from them?
Not sure never bought from them, I wouldn't think so. It's drain cleaner not anthrax they just try to discourage stupid people from using it.
Follow the directions it can mess you up if it gets in your eyes.