I believe I have a delta monitor shower faucet. I am wondering why the hot water pressure is less than the cold water pressure. Also, I am wondering what size hex head I need to remove the lever so I can look at the inner parts. Thanks

Are you wanting to change/switch the hot and cold range of the shower or the temperature max and min? As for the range, the Monitor pressure balance valve may be having build up or problems. This valve controls the mixture of hot and cold water. To fix this, you will need to turn off the water supply, take the pipes apart and clean out the valve (I would recommend a professional). As for the max and min, you may just need to check the water heater pressure in your house. It may not be the faucet at all.

Elisa Jed ' http://www.ryansallglass.com/

It is more that likely the valve in the stem of your fixture, I'm assuming this is a single handle faucet. If you can replace the valve, you will cure your problem. I am giving you a link to how to adjust the hot water temp.

http://www.ehow.com/how_6531012_adjust-anti_scald-setting-delta-faucets.html

You don't change the setting on the faucet or behind the shower wall. You change the mix in the hot water heater itself. New hot water heaters are set at a relatively lower hot-water-setting for liability purposes. To achieve a hotter mix, take the cover plate off the hot water heater. You will see a dial setting that allows you to turn up the heat. Depending on what type of water heater you have, there might be two cover plates (lower and upper). If so, you'll need to adjust both of these.

The Delta shower has a rotational limit stop designed so that when another fixture is activated, such as a toilet or dishwaser, the water does not go to extreme hot or cold. The reason for this is that the Delta shower unit is not pressure balanced or does not contain an anti scald device. The pdf document below will show how to adjust the water tempature if you feel it is too cold. Please use caution as it is probably set the way it is to prevent scalding.

http://www.deltafaucet.com/media/Product_Tech_Docs/Maint_Installation/50001to80000/51975RevH_4.15_15e05.pdf

i dont know the exact size just get the little set that has a bunch connected when you take handle off make sure water is shut down to pipes then take the inner part out of the center there should be two black screens in the ports where water comes in clean those and should be good to shower

First try adjusting the pressure balancing gear located right behind the handle. If you still do not have hot water I suggest to replace the cartridge.

well they should be same size but unless you getting more of one then other then sound like mixing valve is not mixing. do have 3/4 hook up to mixing valve? you only need 1/2" to valve.

take handle off and adjust the nylon set ring it is to prevent kids from getting burned and is probably set wrong youll see teeth and a pointer just pull it out a little and turn it in the oppisite direction then push back in

Sounds like you have lost pressure on one side of the valve. ( either hot or cold ) Or the cartridge has gone bad. If you have hard water if probably is the cartridge. There are a couple of different series for your style of faucet.

The reason why you only get a few drops is the cartridge is pressure balancing. It is a safety device which prevents scalding if one side of the supply shuts down.

Please rate this response and Good Luck, Phil

dont trash it! i suggest you should check all the setting and the procedures in the manual, check if first before you trash the item.