Copper Sulfate Pentahydrate 99.9% Crystals - 10 Lbs.

I've used Coper Sulfate for 20+ years in my 1/3 acre pond. I have never had such success as I've had with this product. It takes much less product than the box store brand. It dissolves quickly and is very high quality. I am using so much less, that it is saving me money and the pond looks great! Highly recommend it.

I’ve been using this copper to keep tree roots out of my sewer lines and I haven’t had any problems since I started putting a couple of tablespoons in the toilet. Works great and is much better option than rodding out the line. Great product Get the larger crystals rather than the powder for roots.

Use to keep tree roots from growing in sewer pipes!

Product arrived quickly, very well packaged with extra padding to prevent accidental cutting into the bag when opening box. Good price. I plan to use this to detour roots getting into my exterior drains, as well as keeping my septic exit free of roots. Thank you!

When I had a plumbing clog, a plumber came and discovered roots in the pipe. He tired to tear them up a bit, but also sold me 2lbs of this and said dump 2lb down the toilet every 6 month to kill the roots. I had to lay $40 for 2lb. I later found this 10lb back for $40 and was quite pleased to buy it at a much better price. After another backup, a better plumber confirmed this was good stuff and I should keep using it. They were amazed at this good price. If you live in an old house with cast iron pipes and large trees around, you might want to do some preventive maintenance. FYI, the good plumber (actually drainage pipe experts) let me know that with my old cast iron pipes, "good" toilet paper like Charmin and Northern, uses lots of glue to make the TP "good". But for old pipes like mine, these can get caught and they won't dissolve for a long time. They had me switch to Angel Soft. I disklike this compared to Northern, but I have to use it. I have also disliked Costco TP, but that is probably because it is "bad" like Angel Soft (and probably cheaper, so I might switch to that).

It’s a little too early to tell how good it is. It takes time for the stuff to work, but they say it will work.

Great quality I use this every year along with 1-2 chorine tablets a week to keep a clear algae free pool

Works better than the small granules sold elsewhere---Gets lodged in the drain rather than washing away with each flush