We need a flush valve for a sani plus unit the toilet is PORCHER

SOURCE: how to replace a commercial flush valve

These used to very simple but have become more complex as technogy evolves. I will give you the standard answer though.

First shut the water supply off to the aplliance (there is a little decorative cover on the valve that is attached to the water line coming out of the wall. It looks like a nut. Pop this cover off and screw the screw in remember right is closed and left is opened.)

Now it is only a matter of unscrewing the couple of nuts that attach the actual valve.

Most valves come with step by step instructions but even without them it is usually a 30 minute job or less. You will need a flat head screw driver, spud wrench, tubing cutters- to cut the chrome trim tube to size, and some pipe thread compound or teflon tape.
Thanks for using Fix Ya and if I can be of further assistance let me know.
Jim

SOURCE: Unable to find replacement flush valve

You can usually find parts through a plumbing supply house in your area but.....If you go back to Home Depot, go to the service desk and ask to see the DooDads catalog. You should be able to find the replacement items for your toilet in it. Home Depot ownes the largest plumbing supply warehouse in North America. They will ship this item directly to your home at no extra cost. Good luck.

SOURCE: hushflo valve

fluid masters are cheap and available every where i would just replace it

SOURCE: Sani-Plus

float switch of level control is defective. replace same with new part

SOURCE: replacing flush valve jacuzzi toilet

I am having the same problem. Looks like we'll need to order directly from the manufacturer.