Topic: How to clean the allotment pond (aka an old bathtub)

[Dandytown]

I have an old bath tub at the allotment which has been sunk into the ground.  The frogs spawn in it but I dont think they have started yet. 

It is full of rubbish and sludge ect.  Should I tip the lot and refill with rain water whist checking the sludge for any life that can go back in.

Any suggestions on getting it a little cleaner or should I just stick gloved hands in or a net and remove any large debri?

thanks in anticipation

[goodlife]

It might be 'easiest' to empty all water with bucket..maybe in waterbut?..then clear majority of the sludge off leaving bit on bottom for frogs/tadpoles to hide in and put the water back in..yes, same water.. ;)
As your tub is sunk, digging it out sounds harder job than bucket job..

[Dandytown]

Why didnt I think of that  :)..... keep all the good bacteria etc in there to support new life.

Thanks goodlife

[Robert_Brenchley]

Why do you want to clean it out? If it's healthy, and not stinking or anything, leave it as it seems to support a healthy wildlife population.