New Construction Tankless water heater (1 gpm activation) PEX Tubing (the red and blue) Kitchen faucet is Moen 5923 - supposed to be 1.5gpm
If I turn on another sink in addition to the kitchen sink, then water comes hot as fast as it should.
I can’t take out the aerator in the sink faucet. It’s a moen combo spray with retractable head.
What can I easily do to increase presssure / flow for the kitchen sink faucet to activate the tankless immediately?