Of foul drains and sweet BCOs

[ToughButterCup]

Trench  dug ✔️

Gravel delivered✔️

Pipes delivered ✔️

I/Cs delivered ✔️

Overthinking done ( i.e. @Russell griffiths consulted) ✔️

BCO consulted ✔️

 

"Send me some photographs of the trench just before you want to back-fill it "

"I/C in place ?"

"Yes"

I'm trying to avoid the situation where she looks at the photos and, sucking her teeth, says ....

 

"Yer gonna have to take that out and ....... "

 

Tips please

 

[ProDave]

Post the pics here BEFORE you send them to BCO

[ToughButterCup]

Oh, God , yes ...... Thanks @ProDave: too tired to think at the moment.

[Russell griffiths]

C,mon  I need cheering up. 

[ToughButterCup]

Back in yer kennel Griffiths....?

[ToughButterCup]

Just rung her. She says ...........................

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Its OK.

344mm wide 

[ToughButterCup]

Ok, how's this then?

 

From the first I/C using my laser (spot 30mm above  the invert) and looking for 1.4 degrees (thanks @epsilonGreedy - I couldn't work it out for myself)

 

Heres how I judged the gradient

The black line is 100mm above ground level - and the laser spot is 30mm above the previous invert - so here it looks like there's 20mm to play with....

 

and that was 1.4 degrees below the previous one.....

 

all the way ( 8 meters or so) to the next I/C

 

which is a titchy bit off level .

The overall line isn't as bad as I thought it was going to be ....

although, there's nowt to be lost by nudging the  second joint left a bit is there?

 

Right, what have I missed, please?

 

 

 

 

[ProDave]

Nudge that second joint left a little to straighten it.

 

Fill with gravel so the gravel comes half way up the pipe along it's whole length.  Photograph it for BCO.

[Oz07]

Are any of those ic's in a traffic area? I usually bed the bases on a semi dry conc mix.  

[Russell griffiths]

The last ic in the pics

why are you entering on a side branch and not on the main run

is there another pipe on the main run I cannot see

if you are trying to turn 90degrees you would normally rotate the ic so you stick to the main run using two 45 to make back to 90

 

but you know this, so there must be more to that pic. 

[ProDave]

55 minutes ago, Russell griffiths said:

The last ic in the pics

why are you entering on a side branch and not on the main run

is there another pipe on the main run I cannot see

if you are trying to turn 90degrees you would normally rotate the ic so you stick to the main run using two 45 to make back to 90

 

but you know this, so there must be more to that pic. 

I did just as @AnonymousBosch has shown for the final turn from the main run into the treatment plant.  I certainly am not going to change it now.