One of the most important features of a dry fire hydrant design is the selection of suction strainer. When going with a barrel-style strainer, the best practice is to select a strainer that has a built-in back-flush feature that allows the contents of the pipe to be "pushed out" when the system is back-flushed by a pump operator. This feature is really important in a static body of water where there is a good chance of small fish and other aquatic life entering the strainer holes and living inside the pipe.
A back-flush feature is an important part of a horizontal barrel strainer design.
The non-perforated side of the strainer serves as a version of a vortex breaker.
The hole:pipe diameter ratio is sufficient to allow water through at an efficient velocity.
Removable plug for staking the strainer in place on the pond bottom.
This installation uses a strainer without a back-flush feature which means anything living in there pipe has to be forced out through the small holes.
