Evolution 10 Supply water to a STDP through STDP outlet inside of Bldg.

Question 1

Connect 3-1/2” hose to pumper. What size reducer shall be connected to the 3-1/2” hose?

Answer 1

3.2 
 Connect reducer (3" x 2-1/2") to 3-1/2" hose.

Question 2

What shall be attached to the STDP outlet prior to attaching the 3-1/2” supply line with the reducer attached?

Answer 2

3.2
Connect 2-1/2” double female connection to outlet. Connect 3-1/2” line, with reducer attached, to double female connection. At command, “Start Water”, fully open standpipe outlet valve on first floor.

Question 3

What 2 fittings can be used attached to the STDP outlet in lieu of the standard fittings?

Answer 3

Notes: c.
A 2 1/2” x 3” increaser on standpipe outlet together with 3” double female may be used in
lieu of other fittings.

Question 4

What are the 2 times this evolution is used?

Answer 4

Notes: a.
This evolution is used to augment standpipe water supply. It is also performed when siamese connection is inoperative, but the system is otherwise serviceable. If necessary, additional lines can be stretched to hose outlets on other floors.