I have a shower in my bathtub. The kind of faucet that you pull up the plunger to divert the water to the shower head. The water is on full blast but just trickles out the shower when I pull up the plunger. I removed the shower head and cleaned it but the problem still exists. I must say that the water doesn’t come out of the faucet real hard to begin with. I have no trouble with the bathroom sink. This is in a bathroom on the second floor of a private home. Any suggestions?