I also remember you mammabird. I usually don't use the forum much in the winter but come back on in the spring just to catch up on what's new etc. I have a retrofit bd as well mine is some modifications on the Tetra through the liner drain (which froze) but I used the cap from it for my drain. I am replacing that this year with the Aqua Art Drain as it sits flatter than mine. Not sure if I understand your "hump" but you usually put the bd in the deepest part of the pond. Avid koi-keepers like to do TPR's--but that also means cutting a hole in the liner. With your pond dimensions you might want two bottom drains one for each deep section. That would mean two bulk heads (I did pipe boot connections) through the liner on the side of the pond wall nearest your settling chamber. My drain has a 4" line reduced to 3" just before it enters the sc followed by a 3" knife valve (there much cheaper!). I take my drain out for winter because of my climate. Water inside pipes in my climate not a good idea. My settling chamber is a liner chamber (kinda like a pond beside the pond)350 gals-my pond is 2500 gals. They say sc should hold at least 10% of your pond volume. I really like this system as use sc for water changes. I have 3-4 ft square matala mats in my chamber which is also my mechanical filitration. Good luck with your new pond and move. Patti

Not familiar w/ "everdry". As long as the water quality is good don't see why it wouldn't work. Is the water temp cool? If so there are some interesting things you could try, if you're brave. 65 gallons is big. I would fill the bottom w/ inert material to about 18" to 20" from the top, then you want to use a 50/50 mix of peat and sand, NO SOIL. Bogs are nutrient poor acidic enviornments. This would be a typical pitcher plant, flytrap, sundew type bog. Lots of things can be grown in this ecosystem including native orchids etc. I'm sure others will fill you in.

pond liner,pond plants,etc that has to do with ponds i got rose of sharon seedlings,sume seeds,sum other stuff

I found a really cool DIY koi pond liner and coating comparison https://store.sprayliningandcoatings.com/comparisons/best-diy-professional-grade-koi-pond-coatings-for-2018/ I learned specific differences between the DIY stuff versus "professional" grade polyurea koi pond liners. This SLC report thing educated me about differences in epoxy vs polyurethane vs polyurea… It’s like a 2nd business after finishing 4 koi ponds. I’ve done a lot of research on Spray on koi pond liners, the hard ones vs the “correct” coatings. I’m a full time landscaper so its not my main business but this DIY koi pond liner made of polyurea held up at 1 client for 6 years now. Others were under 2 years, however. http://spray-lining.net/seal-tite-pond-coating-product-information