kitchen faucet, hot water trickles, but cold water is gushing

So when i turn on normal or cold, water comes out fast. when turned to the left for hot water, its a trickle. thought the faucet head was the problem but friend says no, must be rocks in the hot water tube. either way i dip my faucet head in clr and will put back in tmrw. (btw, do i need to clean the CLR off? how do i do that for the inside of it?)

his idea is take off faucet head, turn off water, remove the hose tubes from the hot and cold areas, pull that out with the faucet tube, and blow hard through that end to shoot the rocks out the other end.

so i go under the kitchen sink and spot 3 knobs to turn off water. he says turn off hot n cold. i think one leads to the garbage disposal. either way i successfully turn off the cold, but turning the hot off, water still came out and was hot when i turn on faucet. do i just need to tighten?

then i try to remove the tubes from the hot n cold but cant turn the turning thing (is it called a nut or something?) now im stuck. HOWEVER, i do notice that the faucet tube comes down into the cabinet below the sink and loops straight back up above the cabinet. WTF? how am i supposed to execute his plan?


any ideas are appreciated. seems like i have tons of trouble unscrewing things, tips please (yes i am a noobie )

thanks!!

The third hose is for the pull-out spout.

See www.moen.com/renzo/chrome-one-handle-low-arc-pullout-kitchen-faucet/_/R-CONSUMER:CA87316C and under
Download Guides, at the bottom, click Instruction Sheets/Owners Manual, or other link.

If you need parts, call 1-800-buy-moen. Some parts might be free under warranty. I expect you would have to pay for the wrench, but I don't know.