My question is, can I eventually turn this design into part of a
greywater system and if so what should I be thinking about right
now, this week, as they build it?
Another thing to consider is where the pipe is from the house that
will transport the greywater ? ( is it on that side of the house ?
How deep is it ? is the pond downhill from that ?) I also question
whether the preform is deep enough, large enough and strong enough.
For my own greywtaer system I used the ultra heavy grade pond liner
and it's 20 feet long by 12 feet wide 40 inches deep ( about as deep
as cattail/reed roots descend). That was the size I heard recommended
for a family of four's "normal" greywater use)