Raising ground level

[Grizzle245]

Hi all 

 

Just looking for advice. Around my septic tank it was cutout into a slope it's a good 30 degree slope around it the drop is about 800mm. What should I use to fill it ? All I seem to be able to get is type 1 subbase, that I believe is not very good for drainage but as the tanks cemented in anyway I wouldn't think it would be an issue. The neck has been extended and shuttered in 

[JohnMo]

Is this a new build or existing, as I thought you had to install a treatment plant now.  Which has a separate soakaway.

 

Can't get pea gravel, crushed stone or what ever your install manual says.  Get from builders merchants or direct from a quarry for half the cost.

[ProDave]

What happened to all the soil that came out of the big hole that was dug to fit the new tank?  That is what you would normally use to landscape bits like this.

[saveasteading]

20 hours ago, Grizzle245 said:

I wouldn't think it would be an issue

I am not understanding what the problem is. A sketch or photo would help.