An RV toilet is designed to be mounted over a holding tank. They use almost no water which at first might sound appealing, but unless you have a septic tank under your bathroom it would be bad news for home installation. Unless modified, an RV toilet would not be able to get the solid waste to your home septic system. A home toilet uses the force of the water to move the solid waste to your septic tank. Look for a low flush toilet or a composting toilet instead.
There are many things that can go wrong with a RV but some of the problems that happen most often are burst water lines, leaky faucets, burst water heater, broken water pump, the toilet messes up, waste tank valves leak water, black water tank monitor lights always show full, hole punctured the RV rubber roof, broken or cracked window, and broken rooftop vents.
The septic tank has nothing to do with the mold in the toilet, the mold that you have is a bacterial growth common to toilets, the toilet needs to be cleaned more often or a stronger cleaner needs to be used, the septic tank is a holding tank for gray water.Mold grows anywhere there is humidity and warmer temperatures. More then likely it's not mold, it's probably just algae if it's IN the water. It's natural when you have well water. You don't really need to worry about it as you can just clean it out with just a brush and water a few times a year. You don't want to put any "Tank Cleaner" chemicals in the tank or toilet bowl if you have a septic tank as it could kill the "Good" bacteria in your septic tank and you could have all kinds of problems.The home septic tank is for sewage waste that grey water is also stored in. Grey Water is technically just waste water from your sinks, showers, etc.In an RV you usually have a sewage waste tank separate form a Grey Water tank as you can empty the untreated grey water into most any drain. Where as the sewage waste HAS to be emptied into a regulated sewage waste disposal site.
If you want to get a water tank for your RV than You should probably buy the largest tank because just for about $10-$15 you can have a bigger tank for water. Other than that brand names don't really matter cause they all hold water.
It is on the LPG tank
Solar panels are a great alternative for electricity. A solar panel can give an RV access to anything that a power supply can give. Solar panels can help heat the water tank and even run the stove or microwave in an RV.
The fuel tank will be provided by the chassis manufacturer. What do you have? Chev, John Deere, Work Horse, and so on?
Start with an almost full and fresh water tank. Turn the water heater off and let the water cool. Dilute 1/4 cup of household bleach for each 15 gallons of tank capacity in to a gallon of water. Add the chlorine or water solution to the water tank. (Do not pour straight bleach into the RV fresh water tank. ) Let the chlorinated water run through them for 1 or 2 minutes one faucet at a time. You should be able to smell the chlorine. Make sure you are using the water pump and not an external water supply. Top off the RV fresh water tank and let stand for at least three hours over night is better. Drain the system completely by flushing the faucets for several minutes each. Open the fresh water tank drain valve to speed up emptying the tank. Open the hot water tank drain plug and drain until it is empty. Close all valves and faucets and drain plugs. Fill water tank with fresh water. Flush each faucet for several minutes each repeating until the tank is again empty. (Make sure you are using the water pump and not an external water supply.) Fill the tank again. The water should now be safe to drink but if the chlorine odor is too strong you can repeat the fresh water flush. Your RV fresh water system should now be safe to use.
Use WD40 first and then wash trailer with a mild soap - WORKS GREAT!
I would not use any chemical as most are a waste of money
An RV.
If I were you I think the best online store would be amazon.com look in the(Automotive Department) you can put the make and model of your RV in the search. They have a wide range of products to fit your needs.