if it is an infiltration basin I assume it will be holding water, in which case the top section will be come fully saturated pretty quickly and your soakage rate will then depend on the material below that
It is not preferred, but sometimes you just have to make things work, so you try to eliminate the risks, or provide solutions to easily repair the risks. Then discus it with the future asset owner as they are the ones that are going to have to deal with it.
I think you would need to have a...
There are other alternatives that could work, polystyrene chips blow away during construction, but more importantly will compress when you compact above them and there will be no voids for water to run through
there are other alternatives like Link
when you say polystyrene aggregate are you referring to concrete mixed with polystyrene, like what is used in some lightweight precast wall panels? So in this instance chunks of concrete/polly or just polystyrene chips?
Concrete as a drainage aggregate is not ideal as it is made up of small...
@bimr how can us doing work without PI cover not be putting our firm at unnecessary risk, you have no idea how good or bad of an engineer I am LOL. As i said the current contract is low risk but there is about 30Ha of future land development in the near future where they will insist on the same...
Thanks for all the comments. To round this out i had a discussion with the companies lawyer and they said that using the proposed clause would void our insurance.
And to add to this, the extent of the cover is not related to the fee. (it is in real life though, I am sure you would draw the...
@bimr I agree with your statement regarding contract value and this is currently a small report and the risk is low, however the client has a lot more land to develop and if we accept it in this case (based on value) we will be expected to accept it on future work with them where it will become...
We have a standard engagement contract (for consultants) that has the following clause:
In providing the Services, the Consultant must use the degree of skill, care and diligence reasonably expected of a
professional consultant providing services similar to the Services.
and one of our clients...
I have never used fusable C900 (PVC for the rest of the world) but there is so much more meat to fuse on a PE pipe I would go with that. Are the issues you have with saddles, mechanical saddles or electrofusion saddles?
To your original question I agree with 1503-44, with one caveat, is there...
Whoever you approach it is always good to get references from other installed plants they have done, it will enable you to find out what they are like to deal with (from the client's perspective) and more importantly get an understanding of how onerous the maintenance is. Some suppliers gloss...
@tigerguy the flow is like water, however there are lots of chopped up particles (if using a macerator or macerating pump)these small particles can clog the small pipes on PSV or get stuck in the valve mating surfaces. Also the valves need to be protected from H2S produced in wastewater and not...
Agree with EireChrch, but if your council is stubborn are you able to collect all the weepholes in a susbsoil pipe behind the wall with almost no fall and run that back to the street or directly into the stormwater connection, will be more expensive, but i have done this on a retaing wall on a...
That is fine, I let the first comment slide (as that was exactly how i had entered the info. if the format was wrong it should not allow the file to be uploaded? like most forums). But when others jump on the bandwagon i am not going to kowtow to what is effectively an attempt at cyberbullying...
When i was doing buildings we worked on 20m intervals for expansion joints, at 22m i would say it is not necessary but it also depends on your foundation conditions and loadings, ie will it settle uniformly, is only part of the building double storey = uneven loading etc
one could say that all these unhelpful posts about how to post an image is more work than necessary! one click and it opens in another tab vs 3 posts ... there must be a global recession with engineers having this much free time ;-) (sorry for not using the emoticon button!)
Thinking a bit more about it we will not be able to create a ring main approach without building a complete new ring main as the existing system did not cater for it and we would be connecting off the end of the networks. I have highlighted the existing low pressure municipal supply in pink and...
