Gas heater needs 2750 RPM to fire

[jmcmd1980]

For the filter pressure measurements, you want it completely closed (i.e. no bypass). We are interested in the performance without any external bypass using only the internal bypass.

I will work on it and post, thanks.

 

[mas985]

Also, how many spa jets do you have and do you know the jet nozzle orifice diameter (not the eyeball) assuming they are a standard venturi tee?