Backflow Certification TREEO Center questions with
accurate answers
A continuous discharge from the RV vent means what ? Ans✓✓✓ The
assembly needs to be repaired .
After observing that CV # 1 is holding tight , what is next step ?
Ans✓✓✓ Open High Control one full turn .
At what height should RP be installed ? Ans✓✓✓ Minimum 12 " to 36
" above grade .
Can you test the RP with water flowing to the customer ? Ans✓✓✓
No , the assembly must be static .
Higher than normal readings of CV # 1 and CV # 2 are caused by ?
Ans✓✓✓ A leaking outlet valve with flow to the customer .
How do you break or stop backsiphonage ? Ans✓✓✓ Add air .
How do you know if the outlet shut - off valve leaks ? Ans✓✓✓ 1. The
RV may not open while testing
2. The meter is running .
3. You can hear the water running .
, How do you know if the outlet shut - off valve leaks ? Ans✓✓✓ The
RV may not open while testing .
If there is a drop in supply pressure what does the RV do ? Ans✓✓✓
Opens to dump the zone .
If there is backpressure on the RP what does the RV do ? Ans✓✓✓
Nothing unless CV # 2 leaks .
In test # 3 on the RP , open vent control and the gauge needle rises ,
what's wrong ? Ans✓✓✓ The outlet shut - off valve leaks with
backpressure .
In test # 5 on the RP , close test cock # 2 and the gauge needle rises ,
what's wrong ? Ans✓✓✓ The outlet shut - off valve leaks with
backpressure
In the DCVA , CV # 1 and CV # 2 must be drip tight and hold how
much in the direction of flow ? Ans✓✓✓ 1.0 psi
In what year was The Safe Drinking Water Act (SDWA) Established?
Ans✓✓✓ 1974
On the DCVA , when testing CV # 2 , which hoses go where ?
Ans✓✓✓ High hose to TC # 3
accurate answers
A continuous discharge from the RV vent means what ? Ans✓✓✓ The
assembly needs to be repaired .
After observing that CV # 1 is holding tight , what is next step ?
Ans✓✓✓ Open High Control one full turn .
At what height should RP be installed ? Ans✓✓✓ Minimum 12 " to 36
" above grade .
Can you test the RP with water flowing to the customer ? Ans✓✓✓
No , the assembly must be static .
Higher than normal readings of CV # 1 and CV # 2 are caused by ?
Ans✓✓✓ A leaking outlet valve with flow to the customer .
How do you break or stop backsiphonage ? Ans✓✓✓ Add air .
How do you know if the outlet shut - off valve leaks ? Ans✓✓✓ 1. The
RV may not open while testing
2. The meter is running .
3. You can hear the water running .
, How do you know if the outlet shut - off valve leaks ? Ans✓✓✓ The
RV may not open while testing .
If there is a drop in supply pressure what does the RV do ? Ans✓✓✓
Opens to dump the zone .
If there is backpressure on the RP what does the RV do ? Ans✓✓✓
Nothing unless CV # 2 leaks .
In test # 3 on the RP , open vent control and the gauge needle rises ,
what's wrong ? Ans✓✓✓ The outlet shut - off valve leaks with
backpressure .
In test # 5 on the RP , close test cock # 2 and the gauge needle rises ,
what's wrong ? Ans✓✓✓ The outlet shut - off valve leaks with
backpressure
In the DCVA , CV # 1 and CV # 2 must be drip tight and hold how
much in the direction of flow ? Ans✓✓✓ 1.0 psi
In what year was The Safe Drinking Water Act (SDWA) Established?
Ans✓✓✓ 1974
On the DCVA , when testing CV # 2 , which hoses go where ?
Ans✓✓✓ High hose to TC # 3
