Browse Forums General Discussion 1 Mar 29, 2013 6:49 pm Hi all, Need your advice here. A couple of the concrete contractors mentioned we need to put an agi pipe under the dirt below. We are planning to deck it the whole area. Our neighbours land is also a lot higher than ours. However, after decking it should level up. Any help is much appreciated. Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ =) Re: Do I really need an agi pipe? 2Mar 29, 2013 9:03 pm Their suggestion is in your best interests as a possible safeguard against any run off from your neighbor's land into yours, but if you want the possibility of wet boggy soil or a small stream under your decking, well thats up to you. If you wish to cut corners, thats fine but can you imagine the expense and pain of rectifying it later? Arfur Re: Do I really need an agi pipe? 3Mar 29, 2013 9:15 pm Legally, no water from your neighbours property is allowed to enter your house. BTW even though your decking will be at the neighbour's level. As far as water concerned, nothing has changed. Demolition August 2009, Construction Started September 2009, Completed December 2010 Re: Do I really need an agi pipe? 5Mar 30, 2013 12:22 am Casa2 Legally, no water from your neighbours property is allowed to enter your house. BTW even though your decking will be at the neighbour's level. As far as water concerned, nothing has changed. I'm not sure about NSW, but in Vic that is not entirely true. We built on slope so we were careful to check about water run off. Our advice was that if it is from a natural surface ( grass, etc) and it is not due to deliberately changed levels to purposely redirect water, run off from one property to another due to natural slope is ok. Water run off from a hard surface such as paving or concrete was another matter and needed to be redirected. In answer to the OP. Go with the aggie pipe if it's been recommended. We have great drainage due to having it installed. Some of our neighbours can have water sitting around for days due to insufficient drainage. It's money well spent and as already mentioned, you could have problems later on without it. I leave you to fend for yourself, figure things out yourself. Terrence Malick Re: Do I really need an agi pipe? 6Mar 30, 2013 2:00 am Quote: Legally, no water from your neighbours property is allowed to enter your house. Ditto what Joles said. It may pay to check because in SA councils couldnt give a toss about water run off entering a neighbours land as I've personally experienced. As the OP had 2 (I assume) independent concrete contractors suggest it I think its the way to go Arfur Re: Do I really need an agi pipe? 7Mar 30, 2013 7:21 am Thank you all for the advice. Judging with the picture attached above how long should the agi pipe be running? Just a single pipe along the wall? Can it just sit under the dirt or do you need some sort of material/substance to surround it? Re: Do I really need an agi pipe? 8Mar 30, 2013 11:58 am An ag pipe sits under the dirt, is surrounded with gravel and then is covered with soil. The ag pipe itself will have a "stocking" Demolition August 2009, Construction Started September 2009, Completed December 2010 Re: Do I really need an agi pipe? 9Mar 30, 2013 1:16 pm Interestingly many drainage pipes that 'leak' draw sand and soil from under a concrete structure. This can lead to a condition called 'sand jacking'. Sand jacking is where sand is compacted further down the line and jacks up concrete. You will have seen thison many occasions without knowing it. ie where a foot path with no trees near by amazingly and miraculously become higher than the preceding or following panel ( slab). A substitute is always a substitute and compromising a site well never be an exact science. IMHO Where you are coming from is where you are going to... Re: Do I really need an agi pipe? 11May 29, 2013 8:26 am I have seen so many ag drains silt up and become useless. There are alternatives that won't silt up but the subject is complex. The BCA says grade the soil away from the house, but if anyone does do that, the slope will not remain intact for long. cheers Re: Do I really need an agi pipe? 12May 29, 2013 11:09 am leighton The BCA says grade the soil away from the house, but if anyone does do that, the slope will not remain intact for long. Regardless, the BCA regs require a 1:20 slope over the first metre and it must be provided. If the homeowner wants to regrade it later, the consequences are then their problem. 3in1 Supadiverta. Rainwater Harvesting Best Practice using syphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost syphonic eaves gutter overflow solution. do not pay until you are satisfied with workmanship windows require flashing over the head archithrave and up under weatherboards 3 28243 OK it's been a little while! I've been busy getting time where I can to work on this. I started by grading a pad (borrowing a… 26 19865 yep sounds good make the footing bigger to to allow for the pipe in the middle 3 7250 |