Tank volume measurement

[Omatako]

I've been looking for a reasonably priced, easy-to-install tank measuring system.

Whilst it is difficult to categorise $800-odd as reasonably priced, this system looks like it's at least easy to install.

The Tank Tender - by Hart Systems, Inc.

Does anyone on the forum have any experience with these units? The blurb on the website says it can even be used to monitor black water tanks but unfortunately I don't want to take the blurb as my only reference .

Andre

[trantor12020]

Andre, did you tried this Marine Holding Tank Monitoring Systems - Ferriello Sales LLC
Same person that made Snake River products but has improve on it.

Ken

[sander06]

The Tank Tender is a completely bullet-proof, reliable system. We had one on a boat for 10 years with no problems. You can't go wrong except for the fact their EXPENSIVE!!!!

[sailingdog]

Tank Tenders make a lot of sense on larger boats, since the base unit can do up to four tanks. One of their units can handle 10 tanks, and they can handle diesel, water and waste tanks.

[teshannon]

I installed a Tank Tender on my boat last year and love it. It monitors 4 tanks, 2 fuel and 2 water. Easy to install. The only hard part is calculating what each inch of tankage is worth since the tanks are all odd shaped. While they are a bit expensive, you make that up with the lower cost of installation if you do it yourself or pay the yard to do it. I started a thread an Tank Tender at the time so might search the forum for that thread. As someone said, bulletproof.

[Rockter]

$800 for an electrical air pump, four bits of tube and a pressure gauge.

[teshannon]

Originally Posted by Rockter

$800 for an electrical air pump, four bits of tube and a pressure gauge.

The air pump on the Tank Tender is not electrical, it's manual. Absolutely no elkectrical connections. I agree it seems like a lot but other than dipping the tanks there is no simpler and reliable way of doing it that I know of. The hardware by the way is top quality.

[camaraderie]

Ditto on the Tank tender recommendations. I can't justify the price either but I've had it on 2 boats and it works well.

[Zanshin]

Do those with the Tank Tender have a list somewhere which translates the analogue reading to a %age full value - with different number for each tank? Or does the output read in liters/gallons left without having to do any further math?

[sailingdog]

Zanshin—

The Tank Tender readout has to be individually calibrated for each tank, since a lot is dependent on the tank's physical shape. A tank shaped like an inverted pyramid might read a quarter full when the height of liquid is at a quarter of it's height, but it would really be only a 1/10 or so full. If the tank were shaped like a pyramid, it might be half full, even though the liquid is only a 1/4 of the tank's height.