Domestic pool turnover rates

[mas985]

Not to answer for CG but for solar panels on a roof with a VRV installed on the roof, you must have positive pressure at the VRV to keep it closed. Pressure drops with elevation so on a two story roof, you must have at least 11-15 PSI on the filter in order for the VRV to remain closed. A one story is better at 5-7 PSI filter pressure.

Carl, if I remember correctly, I believe your panels are in your deck so you can easily run on low speed to run the panels.

Lowering of the VRV would also allow someone to run at low speed on a two story roof but you still need to prime the panels on high speed so the controller must support that.