Ok, am I crazy or would this be an ok idea? Basic purpose to shower off with warmer water before hopping into the pool, especially if sweaty from a workout or something.
Thinking something like tapping into the warm return line with a 3 way valve to control water to the shower head, as shown in this diagram. Thoughts?

Obviously the limiting factors are 1. that the pump be running for this to work, but I have a manual switch right there, and 2. that the heater be warm enough for the water to not be frigid, but in norther California area (Sacramento) shouldn't be a problem very often.
Any advice or feedback appreciated! I'm planning on installing the entire system this weekend relatively following this diagram, but no smart sensors or additional gas/electric heater, solar only.
Thinking something like tapping into the warm return line with a 3 way valve to control water to the shower head, as shown in this diagram. Thoughts?

Obviously the limiting factors are 1. that the pump be running for this to work, but I have a manual switch right there, and 2. that the heater be warm enough for the water to not be frigid, but in norther California area (Sacramento) shouldn't be a problem very often.
Any advice or feedback appreciated! I'm planning on installing the entire system this weekend relatively following this diagram, but no smart sensors or additional gas/electric heater, solar only.