I have a glacier bay. The faucet water just trickles out whether hot or cold is fully on. The sprayer works great. Bathroom is just fine. Took off aerator and it is still the same.

If you have an auxiliary spray hose it is probably the diverter valve inside of the faucet. It is probably just as easy to replace the faucet as it is to change out the diverter.

Darrel

I have a glacier bay. The faucet water just trickles out whether hot or cold is fully on. The sprayer works great. Bathroom is just fine. Took off aerator and it is still the same.

Shut the water off under the cabinet and open up the faucet. If a one handled valve then pull the cartridge and check the inlet ports for trash. Before you reassemble place a pan over the open faucet and turn the water back on for a moment to flush out the supplies. Good luck, Tom