Ky/Tenn. area we had waters freeze any where from 1 to 2 inches under the Houseboat's.
Regarding the stand pipe's in these hulls some of which did freeze and issues arose.
The question is those boats where the obvious never occurred. Is it likely the weld the stand pipe could have been compromised or weaken. So down the road normal vibration ware an tare, has this area been compromised enough for concern?
I was given this tip if you fill the stand pipe with cooking oil its lighter than water thus a prevention any thoughts on this ...
I corrected this after east tenn. below pointed out my mistake's, he's correct.
(I posted oil was heavier than water). Also the ice surrounded the boats