I have a solar hot-water system. There is a copper switch valve at the top of the water heater that allows you to bypass the solar panels and have the cold water go directly into the water heater... I think we have hard-water and the valve must be clogged because I get SLOW hot water flow. The valve is a two-way push valve that has been soldered. So the question is whether there is a way to unclock that valve without taking it all apart...

The switch valve is totally enclosed, so all you do is push a "button" to redirect the water... I've unclogged it before by tapping the button in/out, but this time, it's not working... It's a tough one...

Help...

Can you show us a picture of the valve? Regards, Tom

Here's the picture of the switch/valve

That looks very clean to me. Are you sure the valve is "clogged"? There are O rings inside that may be hard 'n' stiff and therefore may be the problem disallowing any sliding movement.