Patio base dug to deep and clay drainage pipes, water source pipe exposed
Hi All, really need some advice here with a patio extension project I started and got a little messy with the details, as old patio was 900 x 500mm concrete slabs above soil/dirt.
The issues/mistakes I ran into and done:
Digging deep
- I dug too deep and didn't have my string lines set from the start as I have now, I was aiming for 8 inches ended with 10-15 inches in most areas.
- I ended up putting about 1-1.5 inches of the soil/gravel I dug out back in and tamping it on a light rainy day so it's not dry or soaked, but found out that's not right anyway so didn't add any more.
How do I best refill, type 1 is expensive and I'm thinking what the best option to bring it to 8inches under the line is❓
Digging uneven
- I'm not sure how sensitive it is that the slope away from the house is not created from the start? how do I rectify that, or can I do it at the mot type 1 stage❓
- Even though I got my string lines set now, how do I actually create that slope correctly, everyone on videos doesn't seem to do much measuring throughout it and just at the end❓
Drainage/waste clay pipes and water source pipes exposed
- How's best to protect these without crushing them and level the above them with the subbase later, considering the highest point of the pipe is at 6.5 inches below the string line❓
Additional info:
- soil was filling the edges all the way around the old slabs on the house wall, caused weeds to grow, I cleared that all off and was just planning to keep the new patio 15cm below the Damp Proof, and 10-15 cm away from the house, is that correct❓
- I dug out a pile of stones/bricks (thought maybe I can crush that with a sledge hammer and reuse)
- the 1-1.5 inch soil/gravel I put back is mostly tight when I dig my heel into it now
- not much ponds as seen in the pics (it rained today) just a pocket or 2 near the pipes. All taken today except the one that says before.
- I got a heavy duty 90kg wacker plate, but that won't go all the way between pipes, and later over them I'm guess either (to avoid crushing) will the the roughneck do the job❓