Roebic K-97 Main Line Cleaner: Exclusive Bacteria Digests Paper, Fats, and Grease in Sewer and Septic Systems - 32 Ounces, Liquid

Cleared blockage, no problems so far.

My septic system is over 35 years old and works like new. I used as labeled.

This is the best drain cleaner i ever bought.. it works very fast. i will be getting more.

Worked where nothing else would!

(skip ahead to SO WITH THIS PRODUCT if you have better things to do then relive a 1980s crutchfield catalog with this review) Purchased several bottles of this Main Line Roebic to Rehab several Drains in my "new to me" c. 1969 Townhouse. Over just 2 months living here, I've noticed a lot of Plumbing Company Trucks coming and going in the condo complex. Previous owners of my unit were not exactly maintenance conscious. The place was disgustingly dirty, and I had to replace HVAC, water heater, all appliances, $10K in flooring, and a badly rotting patio fence. And then a same building neighbor told me that the drainage plumbing in our complex is not the best. It's like spaghetti in some places, and the complex installed low flow Loos years ago. Thus the plumbing trucks spotted around every week. The trucks all have bright, cartoonlike graphics so it's impossible to NOT see the trucks. SO WITH THIS PRODUCT, I'm Rehabbing the main drain line first. The main drain line is a shared line / shared with with a neighbor who's usually out of town for weeks at a time. It's crucial that the neighbor's gone, if I wanna ensure nobody flushes for 6 hours. So on the shared wall drain, I've been doing a 1/2 bottle in the loo, every night or every other night. That's to hopefully clean out our shared drain for 2 Bathrooms + 2 Kitchens. I usually let it sit 6-10 hours total. 1/2 bottle might seem like overkill. But 2 households using a shared line is A LOT of stress on the line over 55 years. After 1-2 treatments of 1/2 bottle per day,... I'll probably cut back to 4 treatments per bottle. IM HOPING this will help clean out our shared wall drain, and whatever's between our front doors to the main underground city sewer line. AFTER SPENDING WAY TOO MUCH TIME skimming over all the products on Amazon, Roebic seems to be the top tier or top 2-3 products. IT'S HARD TO KNOW FOR SURE what's happening inside drains you cannot see. But a good number of reviewers are saying that plumbers dig this brand as one of the few that works. I'd rather use what the plumbers use, and not have to play a plumber $300 + potential damage to walls and floors. SEPARATE FROM THIS PRODUCT, I'll be using 3 $20 bottles of Roebic soap blaster. First bottle for the kitchen drain which is kinda slow. Am I the only person who drains grease into jars? When the prior owners of your new place neglected proper maintenance, it's a good bet they never took those extra steps. Second Bottle will be for the Laundry Wall Drain. Laundry drains always back up when you don't drain into a nylon capped hose, into a separate utility sink. When I have a side sink to drain into, the nylon always clogs up within 2 weeks. THAT'S A LOT IF LINT. Third Bottle will be used on my shower, which is part of the shared drain I rehabbed first. It's been stubbornly slow and I'm hoping this will Altogether, approx $100-$120 worth of Roebic for an inaugural treatment cycle. To put my mind at ease given the brightly colored plumbing trucks drama. Hopefully I'm doing this all in the correct order. I already went through 2 bottles of the Drano for the Kitchen sink and Shower, and it didn't do enough.