o-ring back up for march pump

Just giving some not so special advice. Make sure you have a back up o ring for your march pump.

I started recirculating the strike water. There was some major leaking from the march pump. I opened it up and my o-ring was shredded.

Luckily I kept my old broken march pump, which had a good o-ring in it to swap. I will have to buy a couple more now.

I need to look at all my equipment know to see where I need some other back-ups.

Where do you even get those o-rings? Let us know when you find them and what size they are. Good to know!