Slide vs ball

[UKjames]

What’s the pros/cons of these for plumbing in a heater bypass and swcg bypass when it is removed?

And for check valves sprung or flapper?

 

[UKjames]

Any thoughts?

 

[ferretbone]

Check valves with flaps are better, Jandy makes some good ones, these are a little cheaper else where but here is what jandy and fibero look like Amazon.com: FibroPool 1 1/2" POSI- Close Non- Lube Check Valve : Industrial & Scientific


Dont use slide valves use these Amazon.com : deverter valve

They dont get as stiff. When they do get hard to turn you can open them and lube em.
Jandy, hayward, pentair all make good valves. I like hayward best. Look to pay about 40 each, You can find them cheaper at pool wholesellers that are not on amazon. I just bought a case of hayward two ways for 27 each. So shop around.
You will hate the ball valves.

 

[UKjames]

Thanks! I notice that has a spring is that better than without- I wondered about extra effort for the pump?

Im struggling to find those in the UK. Although- I know last time I said this for something, someone here found them!

 

[UKjames]

Do you know what options are available on the pentair you link to?

Can you split and adjust the weighting of the flow between two outlets as opposed to 1 outlet or the other?

 

[UKjames]

Ordered some of those pentair ones hopefully the import duty won’t smart too much! Thanks for the link

reading around this site seems that I don’t need a check valve between swcg and heater you only need a check valve for a puck feeder..