126 



D. S. MANN, L. W. McLEESE, AND L. R. DAY 



Piping Inside Buildings 

 Rigid Poly Vmyl Chloride 



Main Lab 

 Building 



F LYGT 

 Model BBO L 



S ubmersi ble 

 Electric Pump 



-3' LLWS 



 Flexible Polyethylene Pipe 

 Loid Under M LW or 

 Beneath Ground 



"Frost Line " 



Reservoir Water Level Floats 

 Control Pumps 8 Alarm 

 System 



30,000 Gol. 

 Concrete Reservoir 



2, Plastic Pipe 



^L/' / 



3 Wire Reinforced 



Stand by Pump 



Boll Check To Beoch 



Valve 



3 Hord Plastic 



Figure 1. — Salt-water system at St. Andrews, N.B., with insert of antisurge unit. 



serviced or held in reserve as a standby. 

 Normally the pumps are interchanged on 

 a 6 months' basis. In case of breakdown, 

 pumps can be replaced in less than 1 hour 

 by two men at the first low tide. A 3-inch 

 line from the pump joins a single 2i/2-inch 

 flexible polyethylene line leading to the 

 reservoir and main laboratory. To reduce 

 pressure surge when the intake pump op- 



erates, an antisurge unit is built into the 

 system at the junction of the three 

 branches of this water line (fig. 1). To 

 eliminate surge, a separate line is being 

 laid from the intake pump to the 

 reservoir. 



A turbine-type pump of smaller ca- 

 pacity (80 gallons per minute) was for- 

 merly used. This type also provided pro- 



24x72 Air Cushion TotiK 



Boiler Drain- 



^ 



|1 43I3A Morrison ,1 . 

 Relief Valve Set i^ 30 lbs 



I WU 86-44 Woter Heoter W/F 3"lD. Pump 



Remote Bulb Thermostat 

 — \ 85° to Lab. 



180° 



>^ 



210° 



Qi 



V 



Std Oom 515 Steel 

 Boiler e 7200 c^ 



40 Gallon Glass 

 Lined Boiler 85° 



-85° 



S, .;- -> 

 ^-Swing C 



_ _ ChecK Valve 



N|' Circulating Pump 1/60 IIOV 



2-, Supply Cool 



J___£_»^___^^85° Salt Water 



^Needle Valve 



Scole i"= I' 



t 



D 25 Watts Oil Burner 

 c/^. Controls 8 13.3 Gallon Nozzle 



Figure 2. — Diagram of salt-water furnace. 



