So I just finished the plumbing to add another electronic valve with a wireless switch so I can fill my fresh water tank through the city water port.
After looking at a couple different options, I decided to install the valve after the fresh water filter. That way the water coming into the fresh water tank is being filtered on the way in and then again when using the pump.
I decicded to use Shark Bite fittings instead of the cheaper PEX crimp fittings. I put a Shark Bite T in the PEX line coming out of the filter and then connected the electronic switch. I then put another Shark Bite T into the winterization port before the pump and connected a piece of PEX from the output of the valve to the T in the winterization port.
When I hit the On button of the remote, the valve opens and then diverts water back through the winterization port and into the fresh water tank.
Here is the 1/2" electronic ball valve I installed:
https://www.amazon.com/gp/product/B06WWPZWGZ/ref=ppx_yo_dt_b_asin_title_o06_s00?ie=UTF8&psc=1
I installed the same type of wireless switch that I used for my fresh water drain valve. In the thord picture the switch on the left if for the fresh water fill valve and the switch on the right is for the fresh water drain:
https://www.amazon.com/gp/product/B07JFH6VQH/ref=ppx_yo_dt_b_asin_title_o06_s01?ie=UTF8&psc=1
This will just make life just a little easier. I have a Camco Fresh Water Filler but it often kinks from the wight of the hose... even when I put the hose across the ladder so it doesn't pull down on the filler. Now I can just connect the hose to city water port and fill the tank before we leave on a trip... but the real benefit will be when leaving a campsite I can just add water to the fresh water tank with a press of a button and without having to unhook the hose and drag it around the back of the coach!
While I was doing all this work, I decided to install an Accumulator Tank while I was at it. I used two flexible stainless steel 1/2" FIP flexible water lines to install it between the output of the pump and the input of the filter. You can just see a small portion of it in the lower right corner of the second picture.
https://www.amazon.com/gp/product/B01MVA6GCC/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1
One of the things I decided while working on the electronic drain and the electronic fill project is that I am going to add some PEX and some Shark Bite fittings to my collection of spare parts that I carry. You never know when a leak or other plumbing problem may develop on the road so having some PEX, a tubing cutter and some Shark Bite fittings can help fix any unexpected plumbing problems quick and easy.