I would like to attach a valve to a regular outdoor water valve (used for attaching a hose) that has two positions: Off to block the flow. On: to flow a limited flow of water, and nothing in-between. I want to attach a hose to this valve and attach the hose to a pool water leveler that has its own shut-off floater. I know how to do the latter. The idea is that if the pool water leveler fails to shut the flow, the flow is already limited and should not cause overflow. The closest thing I can see is the drip-irrigation connections. But I donÂt know how to tie up all the pieces to finish my design.