First pond

[Laaf]

Beautiful pond! It makes me want to buy a house with a pool and hot tub to do such a conversion. I agree with the comments that a deeper gravel layer in your hot tub bog would give you more water clarity. Water pumped to the bottom of the hot tub could be done with a single pump if the current plumbing is too hard to rig to flow to the bottom. You have a real green thumb!