heater header

Hello, I have an Ultra Temp heat pump. How warm does it have to be outside to get much out of it? Our water temp is 68 and the air temps are 55-60. It’s not moving up in temp and I’m wondering if I’m wasting electricity at this point. We’ve never had much issue getting the pool warmed up but...

With filter pump running but the Hayward H400 heater off a considerable water noise is heard at the heater header. This header noise just started after 13 years of use. It is not steam as the heater is off. I have a video so the sound can be heard but couldn't figure out how to attach it to this...

In Austin and out of fear of losing power, I pulled all the drains plugs I could, opened the diverters, and allowed the pool equipment to drain as best I could. As I finished unscrewing the drain plug in the heater header, I noticed this metal stick fall into the snow. What is it? Is it in...