

That will speed up your repair time and make sure you have the right part when you get back to your RV. Just make sure to bring the current part with you when you visit these stores so you can find the right match. If you need an emergency repair, then finding the right part is not or should not take a long time. They can be found at most hardware stores across the nation. The good news here is that these fittings are not restricted to RV parts and supply stores. You would need to double-check and not assume before making any repairs. While most fittings are 1/2 inch, some RV makers may put in a 3/8 inch line. While there are some standard sizes, the size of your RV may alter the size of the fitting.įor water supply, you would need either a 3/8inch or a 1/2 inch fitting to make the connection between the line and the toilet secure. It is hard to be accurate as different RV makers use different-sized fittings. Most RV toilets should have 3 to 4-inch toilet fitting sizes. The repair job will make the job go faster when you track down the right sizes and parts. Or you can contact Dometic to see which parts they have available or go to a Dometic dealer to get the right part.Ĭontacting the maker is usually the best way to get the right supplies and materials you will need. One of the best ways to find a compatible part would be to take a piece of the old hose with you to a home improvement store and match hoses.
RV BLACK WATER HOSE CONNECTOR MANUAL
Check your owner’s manual to make sure which part you actually need. However, some Dometic toilets use an NPT connection. In one of the answers to the customer questions on Amazon, the Dometic rep stated that you would need part number 385311937 to replace your current water supply line.īut if you are having trouble finding that part just about any 1/2 inch hose with an FPT or MPT fitting should work. If you have a Dometic 310 toilet in your RV then you will need a specific Dometic part. You can use any material for your water supply line but watch the weight of that material. Most RV makers are going to this type of hose line because it cuts down on the overall weight of the RV. This hose is not expensive and it can be used for both cold water and hot water supply. Most RV makers have turned to what is called PEX hoses. The material used for the water supply line is as important as the dimensions. The size you have inside your RV will depend on either the manufacturer or the repairman who refitted the plumbing. These two standard sizes are used interchangeably at times as you can get a connector that has a 1/2 inch opening on one side and a 3/8th inch opening on the other. Or you may be told you need 3/8ths but the line you are replacing is 1/2 inch size. Both work well and you may see both sizes in one RV. One size is 3/8ths and the other is 1/2 inch. There are two standard water supply line sizes used in most RVs.
