Yes it does. It's attached to the lid on the inside
Nearly everyone else that asked questions about this leak detector needs to read this. This leak detector is a soapy solution (you could make your own just as well) that is ONLY intended to detect GASEOUS leaks such as compressed fuel gas (not gasoline) line/connections, or compressed air connections or other compressed gas systems. It will NOT detect leaks in any kind of liquid systems such as swimming pools or car radiators. OATEY,/HOME DEPOT please note that your title is entirely misleading and that is why you are getting all these questions. It is NOT an All-Purpose leak detector. It is only for compressed gas.
No. This is not that kind of leak detector. It is a soapy solution intended to detect leaks in pressurized gaseous lines by showing bubbles. If your drain pipe is visibly accessible, you might try using an ultraviolet leak detecting concentrate and an ultraviolet light. A sewer smell can be indicative of an open sewer, that is, a trap that doesn't keep water in it. That is all that keeps sewer gases out of your house. If your leak is so small you cannot SEE water leaking when showers are running, then it doesn't make sense that sewer gas is coming from a leaking pipe. The sewer lines are not under pressure of any kind, and all that keeps gases at bay is a few ounces of water in a sewer trap.
No. Only for gases, not liquids.
This works only for gasses, not liquids. No radiators, no pools. Ultraviolet Dyes are used for liquid leaks.
Update to this question about a "mystery" leak. The mystery has been solved. There were no leaks, in the fittings anyway. It was the regulator. Now of course I checked the fittings to the regulator, and even the output with the screw backed all the way out. But the leak was internal. I have had internal leaks before in regulators and they were always audible. This one was too small to be audible, and hardly noticeable on the supply gauge, but enough to draw down in about 45 minutes. Replaced the regulator, problem solved. Pressure gauge has not budged a hair. It's always the last thing you think to check.
well yes and no YES it can easily pin-point any leak NO because it has corrosive properties i'd recommend the "bubble" solution from dollar tree water+soap for that application in a spray bottle
NO. This leak detector is strictly for gaseous leaks, not liquid leaks. 8000 gallons is a lot, but get several bottles of concentrated ultraviolet dye made for leak detecting or sometimes referred to "tracing". "Close" your pool and put it in and stir it around. Then go out AT NIGHT with your ultraviolet light and see what you can see. You would want to flush the pool when you get done. But that's about the only way to detect a small leak unless you just happen to see it, if it's big enough to be seen. Be sure to use a good quality ultraviolet (black) light that does not contain a lot of visible light.
yes as long as you can get to the place where the leak is
it is for air/gas leaks I don't think it would work for your application