How To Make A Pvc Pipe Water Tank
Planning the layout of the water tank
Contents
Start by measuring the recommended tank installation area. We noticed that we had a total length of 40 inches between the cross-frame and the rear legs of the Amp Powerstep for Tanks. The 8 inch PVC pipe has an inner diameter of 7,942 inches. Security online calculator was used to determine that pipe with a bell-shaped end cap would lead to approximately 8.8 gallons of storage.
Planning tank mounting system
Before building the tank, you should design the installation system. Many people use galvanized pipe straps to hang their water tanks. We don’t recommend this method, but it seems to work for others. We used 25 inch long fuel tank strap Available for just over $20 on Amazon. The steel of the strap is thick enough to use a bolt on one end but thin enough to fit a round tank. They also have adjustment mechanisms on one or both ends, ours has an adjustment bar with a cinch pin. Read: how to make a water tank with pvc pipes
No plug and play
Please note that this is not a plug-and-play installation. Our truck is unique in that it has a tank-mounted steel strap for our seat rails. This allows us to solder several tabs that attach directly to it. That said, our friend also builds tanks for his Sprinter and uses a different approach. He used the same strap we did, but added a chestnut to the van’s crossbar to hold one end of the strap. He bends a holder to accept the adjustable end of the strap. You can see how to install this tank near the end of the YouTube video we posted above. To make installation easier, we recommend using a longer strap. We used Spectra ST07measures 1.75″ wide and 25″ long. However, you might consider using this extra-long 44-inch strap for added versatility. You can cut off one end as needed. This is photo from one of our users uses a plus nut in the frame and cross member and a 44-inch strap is cut.Our tank holder includes two fuel tank straps. One head bolts to a tab that we weld under the valve and the regulator head goes through a corner holder with holes bolted through the factory holes on the valve frame.
Mount tabs from angle steel
We can use the existing holes in the frame for the adjustment side of the mount. First, we get a bolt long enough to penetrate the chassis. A small dish with a hole that serves as a washing machine. The hole in the frame is much larger than the bolt, hence the use of the plate. On the other side of the frame is a corner holder with two holes. One hole accepts the bolt through the frame, the other accepts the adjusting mechanism of the tank holder. We weld a nut to the frame to accept the bolt through the frame, however this is not required. Be sure to cover the bolt holes even though the frame is not in contact with the adjusting mechanism bolts. Either of the brackets shown above.
Water tank design
Your PVC tank can be used for fresh water or gray water. Ours are being used to store fresh water for bathing. We built our tank together with a friend who will use his gray water. The freshwater and gray tanks have the same design. If your sink is on the passenger side of the van, using this as a gray water tank is a perfect solution as none of the tanks are designed to go in this location on a Sprinter van. Read more: Blog | Top Q&A Your tank will require a way to fill it, a way to drain, a vent and a pump suction hose if used for fresh water. Vents are required to let the water move air when desired, and vice versa when draining.
Cut PVC pipes
Once you have calculated the total length you have available for the tank, cut the pipe accordingly. Be sure to take into account both the thickness and bell shape of the PVC end caps. We used some flexible straps that curled around the pipe to mark the cut with a permanent marker. PVC is easy to cut with a hand saw.
More Tank Filling Accessories
Our storage tanks will be filled through a number of fittings inside the sliding door step. The most sensible thing in our installation is to place the tank fill fittings as far into the tank to reduce the length of the hose. The PVC end cap deeper than needed for this application, so we cut the tailgate down. With the temporary end cap in place, we mark a spot and drill for the tank inlet. We used a hole saw with a pilot to drill a hole to accommodate Bushing 1″NPT. You want the fitment to be tight, so use a file to easily upgrade to the correct hole size. You don’t want to rely solely on glue to seal the bruise.we cut the threaded bushing down they are slightly thicker than the thickness of the tube. This was done so that the extra length of the bushing does not create a small riser inside the tank and prevents it from filling up. Before you stick to the fitting, apply teflon tape on top 1 inch elbow and secure the input string 1 inch bushing. This will allow you to stick to the bushing and make sure the elbow is pointed in the right direction. Put Lining on the bushing and around the hole, then add glue and quickly glue in place.
Add a vent pipe to the tank
Using the same method as before, cut 1/2″ bushing and primed and glued to the PVC pipe. Orientation doesn’t matter here because no elbows are used, just a plastic lifter. When gluing, make sure not to let the glue stick to the threads! Read more: How to turn a super saiyan in real life Air vents should be as high above the tank as possible. We don’t have room to go much higher than the height of the lift hose and female-to-female couplers, but so far we haven’t seen any leaks through the vents. It is possible that on really steep terrain, water can seep through the vents. Threaded fittings were used, so if this were the case, the accelerator could be swapped out for an elbow and some pipe running high up into the engine bay. We would like to mention this as a possibility depending on your use case. Glue the teflon tape to both ends of the stand pipe and threaded into the bushing in the tank. Topic female with female compound into the riser and threaded vent into the converter.Ventilation fittings (left) and barrel filling fittings (right)
Modification of End Cap for Suction / Pump
A bushing should now be fitted to the cover to allow the tank to drain. Orient it as low as possible, but make sure to take into account the shoulder inside the flap. If this is used as a gray water tank, we will probably use 3/4 bushing combined with a 3/4 electric ball valve dry.The 3/4″ bushing is being fitted in the PVC end cap However our tank is being built as a freshwater tank. We have a 3/4 bushing in our final limit, along with 3/4″ to 1/2″ reducer to allow the use of a 1/2″ switch valve. The adapter valve allows us to use this one location to act as both the drain and the pump receiver. You can only use one 1/2″ bushing here instead. The thing to note here is that the flow diverter valve is not high and therefore the tank drains a bit slow. No worries about fresh water, but there’s no reason to use a switch valve unless you’re building a freshwater tank. The second outlet on the valve is up and this is where our fresh water hose leads the way to the water pump.
Glue on the end cap
Once all of your desired accessories have been inserted into the tank, the end caps can be ground and glued into place. Be sure to be quick in gluing, and have a rubber mallet just in case. Ours slide easily by hand. Be very careful not to stick glue on any of the threads. Also, make sure you have drain orientation at the bottom.Complete PVC water tank
Installing Partitions in Stepwell
Mark and drill metal valve for Baffle head. Be sure to leave enough room to turn the threadlock ring into place. Also, be sure to paint the steel ceiling valve so it won’t rust. Partitions fit two 1 inch NPT elbow can now be chained in place. We are still perfecting our design so the fill is suitable for both pressure and gravity. Read more: How to skip the red carpet festival.
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