Chapin InternationalChapin 98142: 40-Gallon Water Storage Tank, Utility Water Tank, Water Supply, for Farms, Acreage, Gardens, Orchards, Translucent White

Absolutely perfect for rainwater collection. Large, sturdy and, importantly, affordable. All praise to Chapin!

BOUGHT TO CONNECT TO MY RIG . SEEMS VERY STURDY AND REASONABLE .

I absolutely love this tank! It’s sturdy, well-built, and the red cap makes filling and sealing super easy. It actually looks better in person than in the pictures. Perfect for my mobile detailing setup. Highly recommend it! Fast delivery, too. Thank you!

This tank will work prefect for our small maple sap collection system.

The 2" drain cap leaks like crazy. I messed with it for a half hour reseating the cap and the washer a ton of times - this was after I had filled the container with a good amount of water (40 gallons of water would be 300 lbs so you aren't going to be able to move this thing). I have it about half full so this was extremely heavy and a true pain in the ass. I had it inside in a place I couldn't just dump it. It's basically worthless until I can figure out some kind of sealant that actually works. I feel like returning this thing would be a huge pain because it's so large. I'm just going to try and order some kind of sealant caulk or more washers.Buyer beware - this thing is a nightmare to deal with trying to fix a leaking connection....

The 40gal tank is very nice but the 2” drain cap LEAKS. I’m using it as a chemical mix tank for my weed spraying. As such a leaking tank is very bad! Like other purchasers I had to seal the cap with silicone to stop the leaking. Cleaning the drain spout of plastic burs, tighten the cap,… all failed to stop the leak. They need to redesign the drain cap to resolve this problem or ship the tank with a tube of silicone.

The tank seems strong and solid, but the 2" cap with garden hose adapter comes with a very thin flat rubber o ring that leaked, had to buy a thicker flat o ring, hopefully that will stop the leak

You're not going to find a tank with this capacity for this low of a price, they all cost a lot more and they charge huge amounts for shipping. I bought 2 of these and they fit perfectly in the back hatch of my SUV, i can haul 80 gallons of water. The only drawback is that you must make sure you use lots of Teflon plumbers tape when screwing on the adapter nozzle. The first time I didn't use any and it leaked a lot. Second time I used a lot of Teflon tape on that adapter seal, and it only had a small drip leak. It was manageable.