What size digger to get a treatment plant off a deliver lorry?

[saveasteading]

Oops Vonrractong should read contracting. Perhaps a German contractor.

[crispy_wafer]

Here it comes...  No digger required, just ally ramps and slide it off!

 

 

[crispy_wafer]

D day has arrived.

 

Operation dig the hole will commence at some point today, it's only been sat waiting for 2 months!  Must be losing my grip! 

 

Was chatting to an acquaintance this week, he used to labour and what not on sites round this district, suggested I put some ground anchors into the concrete base, let the concrete go off, then strap the tank down as that's what they did on the sites.  Instructions don't say to do this...  Wonder if this is one of those installer tricks that is never written down!

 

Thinking of surrounding it in kerb mix, would that be the right stuff to order?  How much concrete can I put over the barrel up the riser?  I've got about 7-800mm to play with before ground level. 

[saveasteading]

Do what the instructions say. The manufacturer knows the strength of the tank. 

A cable or strap will hold it down but could stress the tank and damage it.

There used to be some tanks that said to strap it down.  it isn't a secret.

 

You could however strap it down while you pour the concrete.

But use  strap not a cable.

Concrete choice? What do your instructions say?

[Conor]

Use a dry/lean mix to prevent flotation. There should be a be a guide in the instructions to tell you how much is needed. Don't want to get it wrong.

[PeterW]

Also fill the tank with water as you go and concrete it in - you should roughly keep the levels the same as it stops stress in the sides. Depending on where it is installed - lawn or driveway - indicates whether you should cover with concrete or just gravel and topsoil.

[crispy_wafer]

My tool for the week.

 

 

First job, remove the IC from in the grass (for when we were going to hook into the septic tank)

 

Didn't take any more pics until finished!  But I had a bit of socket pipe and a slip coupling from all the UG drainage bits I had left over.  Knew they'd come in handy one day!!

 

 

I'll be honest, I didn't bother with any pea gravel, It's going to have a limited life, septic tank will be decomm'd when we finally move in, and none of this run has any pea gravel, so not wasting any on this short bit of repair.

 

Job jobbed!

[crispy_wafer]

Next task,

 

Remove rose bush and some flowering weed from treatment plant's new home

 

 

A few canes to mark out the excavation...

 

Fired up the quattro!! Mrs B on the machine fettling the throttle as it likes to cough/splutter and stall on occasion, so Mrs' B's task for the day - Keep the machine idling till I need to empty it!  

[crispy_wafer]

Hobbit checking out the hole

 

 

Getting there

 

That'll do for the day

 

Shape is OK, just needs about 150mm off the bottom tomorrow, then I reckon we should be good for a trial fitting, not perfect, but acceptable I think considering I can only operate the machine from one side of the hole.

 

Pleasantly surprised by the lack of ground water.  Managed to rescue an amazing array of bottles, bricks, bits of car and other rubbish at various depths of the dig.

 

[crispy_wafer]

Deep enough I think!

Ready for lifting

 

at this point I'm thinking Hole too big!

 

 

 

Plenty of Room for concrete, concrete for the base is coming Tuesday, about 2m3 I calculated, base will be about 300mm thick as I miscalculated the dig depth a little 🤔. 

[crispy_wafer]

Today, I will cut a channel through the field to lay 70m of 32mm mdpe in ducting.  Made the decision that we'll fill the channel and surround the ducting with 2-3ft of 2" clean stone to act as a drain, we've done this at the back of the house and round the other side of the riding school and it works well to drain the surface water.  You can see on the photos that we are blue/grey clay under the top 3ft or so of sandy/gravel and is really slow draining after prolonged wetness!

[dpmiller]

careful nothing falls into that open manhole, it'd be a b*gger to get back out again as you can't climb in without removing all the airlift gubbins that's bolted in...

[crispy_wafer]

4 hours ago, dpmiller said:

careful nothing falls into that open manhole, it'd be a b*gger to get back out again as you can't climb in without removing all the airlift gubbins that's bolted in...

Yep you’re right, cover now back on had to take it off otherwise the lifting strap fouled on it.

[crispy_wafer]

in the ground.  A full load 8m2.  Reckon I could of used another cube just to tidy it off but I emptied the wagon and  It's not going anywhere.  However, neither am I.  My body is broken! 

 

32mm MDPE pipe inside 110mm waste pipe as a duct.  Got some 2" twinwall but decided on using waste pipe, so If go digging again one day, the waste pipe will put up more of a fight than black twinwall.