

the pvc pipe that is seen in the photo is new and goes to a submersible pump (1/2 hp) it was spliced with the previous metal pipe, that valve is in a closed position and lets water into the tank, the issue is that loses enough, I would like to know if it should be changed for some other type of valve more precise (type butterfly or ball for example) or with some adjustment or teflon could be solved, thanks
if you can but you need no pressure in the pipe since if there is pressure a jet of water will come out and maybe it will be complicated to put it in addition to being probably soaked, look at the smaller nut from the top you can remove it and then give it more Turn the knob so that it comes out completely, once outside you can put enough teflon tape on the nut gasket with the plunger you just removed or a packing also known as oring.