6x2x2 tank and stand with sump, pond pump and pipework

Would anyone be getting rid of a pump and or filter for a pond for free as I am trying to get life back into our school pond as the children love it! Thank you in advance walsall / Wolverhampton area?

Basically I’ve made an air bar for the pond and the two way pump I’ve got now doesn’t have enough umph to push air through continuously it’s sort of farting out in stages it’s only a cheap 120L/H one but been needing a decent one for the pond for a while just wasn’t sure what to go with

@48919845273669 what pond air pump would you recommend that doesn’t sound like a 747 and will last longer then six months before the diaphragm turns to dust

It now seems that my air pump has now decided to give up on me aswell 🙄. Anyone local to Oxford have one for sale/spare?