Zep Drain Defense Enzymatic Drain Cleaner Powder - 18 Ounces - ZDC16 - Safe for Pipes and Septic Systems, Pack of 1, white

We have drain flies due to having old pipes and a septic. Have used quite a few different products and techniques with little to no luck. This enzyme cleans the inside of the pipes to destroy the environment flies like. This is not a clog removal but rather a treatment to destroy whatever it is the flies gravitate to.

It's easy enough to use. I put a couple teaspoonfuls down each bathtub, bathroom sink and kitchen sink drains. I will wait to see if there's an improvement on the Phorid fly problem. So far, it's been a couple days and I've not been noticing any significant phorid activity. I'm certain it will work because its an Enzyme cleaner designed to remove food and biological debris that build up in drains which attracts the Phorid fly. Enzyme cleaner was specifically recommended.

I did not get a scoop in mine which is problematic . I used a very liberal amount the first night , my drains were not clogged though I was worried they were sluggish at times . Gave it a good 8 hours after following the instructions . In the morning I filled up the sinks with stoppers , turned on all the faucets otherwise and took out the stoppers sending a rush of water through the pipes . They all drained very well . So much so I believe there was improvement the first night and enough so the next few days will not be able to perform better . However as instructed this first time through I will repeat for 3 nights in a row . I use ridx monthly and have for years . I had also put down Liquid Plumber before winter each year in my pipes feeling sad I was killing good bacteria in my septic systems . Will use this stuff from now on . Took one star off for no measuring cup and fact you really seem to need to use allot at first way more then they recommend . There is no way I will get 44 applications I will be lucky to get the 3 nights times two systems or 6 heavy applications from the $12 container for the first run . After that I imagine I can use less . If I could get it down to what they recommend I would get almost 2 years out of a container ( 44 uses or / 2 systems 22 months ) making it cheap to use . I was most impressed at how it helped my bath drain . Make sure you have a bucket or somewhere to wash your hands . I have a sump pump on a sink downstairs that just pumps out on the drive but otherwise you would need a bucket of water so you would not rinse your bacteria out of the pipe washing your hands .

Works great on the overflow hole in your bathroom sink, you know the one that emits offensive smells when you catch while bending over to brush your teeth? Well, yeah, that one. But it's rather toxic, so handle with care. I use a thin tubed funnel, and it has to be mixed in a throw away container first, and left overnight. So plan ahead! May have to do it 2x if it's been a neglected hole (oops, that sounds wrong) but trust me, it will be worth it!

Worked great on drains, 3 bathroom tub and sink, 1 kitchen sink, 1 utility sink. 3 treatments over 3 days. No smells now nor slimy pipe buildup. Thank you Enzymes!!

I had a drain fly problem and unsuccessfully tried some suggestions online for cleaning and unclogging the pipes. I eventually read that an enzyme cleaner might be the best and safest solution to tackle the issue. I bought this product and used it for three nights in a row, leaving it in the kitchen drains overnight, covering the drains, and then rinsing them with hot water the next day. I also used it to clean the garbage disposal as instructed. I believe the drain fly problem is solved for now with the help of this product, deep cleaning my kitchen and using some other methods. The problem is my garbage disposal now smells like rotten sawdust from this powder. I have tried just about everything to clean and sanitize the disposal to remove the smell but it won't go away. The smell wasn't there before I used this product. I don't know what to do.

It really works but it takes weeks or months to see results. It actually caused more clogs in the beginning because it was breaking down fat bergs that were rock solid from decades of buildup, so I had to snake them out of the sewer trap to unclog the system again. The best way I can describe it is the enzymes causes the fatbergs to “cave in” and this can cause a clog. These fatbergs are so hard, drain cleaners likely won’t work, you’ll probably need a snake. After a few more times of snaking the clogs from the enzyme breaking down the fat bergs, the pipes are running smoother than ever. I strongly recommend you prepare yourself to snake if your pipes are over 50 years old, because this enzyme will definitely break down the fat buildup which can result in more clogs in the first few months.

I've ordered this 4 times in the past for myself and family. Works great. This is the FIRST TIME EVER I've ordered it, and had it show up unsealed, opened, missing the scoop and HALF EMPTY! What.... did they think I wouldn't NOTICE???? I try to get the issue fixed, and all I get it "return the item and drive to a UPS Store" a hour away. When did they get rid of label pickup? Then spend 15 minutes dealing with a broken AI chatbot, and a failure to return a call, to finally get a human in the chat. This is ridiculous. Apparently Jeff needed the money more than we did. What a complete ripoff.

No amount of cleaners or bleach could get rid of the smell coming from our bathroom drain. Couple doses of this stuff and it’s good as new. Highly recommended!