Trench Safety
Per OSHA at what Depth Do you need a Trench Box?
5ft
What is the ideal slope on a sewer line?
2%
What are the two different pipe size classifications we use.
IPS and CTS
When do we need to do a pre walkthrough?
ALWAYS
What does Granger Hunter require when installing cleanouts.
Concrete under the wyes
What soil type do we dig in and why?
Type C, because we are digging in existing trenches.
Name all the parts in our sewer bin.
2 cast ferncos, 2 clay, 2 concrete, 2 transite, 1 3x4
4 45's, 2 22's, 2 wyes, 2 sprinkler boxes, 2 cleanout tops
2 3/4 compression couplers, 2 1in compression couplers. 2 3/4 inserts, 2 1in inserts
What is the max pressure we can set a PRV to.
75 psi
What is the purpose of a Pre Walkthrough
Set expectations
In provo city how big does the main need to be to use an Inserta Tee?
10in or bigger
How far can a trench box be off the bottom of the trench?
2ft
How much gravel is required under the sewer line?
6in
What do you do to protect the waterline before backfilling?
Bed it in sand
Avoid big rocks when backfilling
What is the purpose of the post walkthrough?
To make sure the customer is happy
Answer questions
Collect money
5-star review
What sewer district requires salt on the ferncos?
South davis
What is the required height that the ladder needs to be above the trench?
3ft
Wat separation is required when passing under a water main with the sewer lateral?
18in otherwise it has to be encased
What is the purpose of a dual check valve?
To prevent contaminated water from going back into the city water system
What is the proper dress attire for the walkthrough?
Clean Polo
Clean sweatshirt
Clean Hat
Salt Lake requires this to be installed on the sewer line close to the main when doing a full ex.
Test tee
Per OSHA what is the required slope for type c soil?
1.5 horizontal to 1 vertical
If the sewer line is 60ft long and there is 8in of fall what slope do you have
1.1%
What are the special waterline requirements for ogden?
New can and lid, fabric, sand, gravel and a check valve.
What is the first question on the walkthrough form
Does the homeowner have a working sprinkler system?
What is the only sewer district that makes us use rocky mountain tapping if we want to tap their sewer main?
Cottonwood heights improvement district