Recent content by Smooky

It could be a broken sand filter lateral and filter media is getting into the pool.

Here in NC the tank depth is determined by maximum trench depth for a gravity system. Soil conditions, how deep rock is located or water table depth determines trench depth. In some cases the trench depth is very shallow in wet areas or in some cases in a mound. The plumbing has to be held...

How about a tee handle? https://fwwebbimage.fwwebb.com/WO/Main/81195.jpg https://www.ferguson.com/product/apollo-conbraco-therma-seal-tee-handle-for-apollo-conbraco-series-70-valve-a7821901/_/A-ProdFamily-418874

Take the handle off. Cut the stop off the end of the handle or bend it up. Then put the handle back on. It should work pointing in either direction and will close the valve on either side of the pipe.

Maybe there is a cross flow at a single handle faucet? Maybe the cartridge in the new valve was not pushed all the way into the valve etc. Did the problem start about the time the new valve was installed? A gasket could be missing etc. What other plumbing repairs have been done recently?

Here is a Delta Conversion Kit - 1500 Series to 17 Series 1-800-345-DELTA (3358) https://www.deltafaucet.com/parts-product-detail?modelNumber=RP29405

Make sure all the valves are fully open. Low flow might be because a valve is partly closed or piping could be undersized etc. Sounds like you got some sort of flow restriction somewhere.

Here is a better example:

The first 21 seconds of this animation shows a deep well with a single pipe jet system: https://www.youtube.com/watch?v=U0wGhmvhChU

You are so close on it I can't tell for sure. . . . That looks like part of the isolator valve; it might be one of the flush ports. That type of heater has to be flushed out to prevent minerals from building up and reducing efficiency.

You can just screw them on

Here is another with a poppet type vacuum breaker

Here is an example of a built in backflow preventer

If they are original to the home from 1959, you probably don't have any type of backflow preventer.

If they are not already built in you can just screw one on each hose bibb...