I don't know, but he came up with his answer. I quicky did a search, and found these (2) SUBG, and table 3
both seem to be in the area of poulds/ square foot that he is mentioning
got to think about this a bit, might have me changing location of tank from living room to basement....
Jim C.
+--------------------------------------SubG---------------------------------+
According to the 1991 Standard Building Code:
MINIMUM UNIFORMLY DISTRIBUTED LIVE LOADS
Occupancy or Use Live Load (psf)
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Libraries:
Reading rooms 60
Stack rooms (books and shelving at 65 pcf) 125
Corridors, above first floor 80
Residential:
Multifamily houses;
Private apartments 40
Public rooms 100
Corridors 80
Dwellings:
Sleeping rooms 30
Attics with storage 30
Attics without storage 10
All other rooms 40
Table 3. Minimum Uniformly Distributed Live Loads (BOCA, Building Officials and Code Administrators)7
Occupancy or Use Live Load (psf)
Garages
Passenger Cars 50
Trucks and Buses 50
Manufacturing
Light 100
Heavy 150
Office Buildings
Offices 50
Lobbies 100
Residential
Attics 20
Dwelling units 40
Sleeping rooms 30
Sidewalks 250
Storage Areas
Light 125
Heavy 250
Yards and terraces, pedestrians 100