Browse Forums General Discussion 1 Oct 31, 2017 3:10 pm Just a fixed pricing from the builder for Stormwaters and underground concrete water tanks which totals to a whopping $46,350. The total included in the tender was about $33,000 and i was told that this was a higher provisional allowance and will reduce once the actual hydraulic plans are done. I am feeling that the builder is ripping me off..... Can anyone with a similar situation or know about stormwaters related issue provide some advice as what i can do? Details breakdown were: Provide fixed price for Sewer including the following: • Repairs and replacement of Sewer Junction • Service and repairs to existing water service. Provide fixed price for Stormwater Connection as per Hydraulics Design: • Install 1 x 10,000 litre concrete below ground rainwater tank including pump and rainbank •100mm stormwater lines • 2 x 450mm concrete pits and grates • 1 x 300mm concrete pits and grates • 1 x Absorption Trench to rear • Cutting & Temporary Repair of footpath and concrete kerb outlet • Works As Executed (WAE) documentation, certification and inspections Re: Stormwaters and Water Tanks - total $46,350 2Oct 31, 2017 6:07 pm Impossible to say without being onsite but the fact that they have specified a RainBank is a sign of price gouging for what is a product of notoriety. Google RainBank and see what comes up! Underground tanks are expensive, why are you having them? 3in1 Supadiverta. Rainwater Harvesting Best Practice using syphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost syphonic eaves gutter overflow solution. Re: Stormwaters and Water Tanks - total $46,350 3Oct 31, 2017 6:18 pm Here are some quotes examples from Cordell and my QS: Stormwater drains - complete - PVC pipe and fittings - solvent weld joint - 100mm diameter x 0.5 metre deep - $67.76 per m Stormwater drains - complete - PVC pipe and fittings - solvent weld joint - 100mm diameter x 0.75 metre deep - $87.76 per m Manhole concrete - 150mm base 230mm wall - 610 x 610 x 1000mm deep incl cover - $1760 Rainwater tank installation -Duraplas lattice - underyard- 5000 litre - $10,013 (includes, exavate & backfill, strainer, overflow, outlets, 1st flush,slab, supply pipework) Rainwater tank installation - polyethylene - above ground - slimline - 2000 litre - $1887 Plus GST, plus builder margin (if any) You can clearly see the difference between underground and ground level tanks. Re: Stormwaters and Water Tanks - total $46,350 4Oct 31, 2017 6:33 pm SaveH2O Impossible to say without being onsite but the fact that they have specified a RainBank is a sign of price gouging for what is a product of notoriety. Google RainBank and see what comes up! Underground tanks are expensive, why are you having them? The underground tank is a requirement from council for knockdown and rebuilt. Re: Stormwaters and Water Tanks - total $46,350 5Oct 31, 2017 6:36 pm They actually stipulate an underground tank??? 3in1 Supadiverta. Rainwater Harvesting Best Practice using syphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost syphonic eaves gutter overflow solution. Re: Stormwaters and Water Tanks - total $46,350 7Oct 31, 2017 11:57 pm alexp79 Here are some quotes examples from Cordell and my QS: Stormwater drains - complete - PVC pipe and fittings - solvent weld joint - 100mm diameter x 0.5 metre deep - $67.76 per m Stormwater drains - complete - PVC pipe and fittings - solvent weld joint - 100mm diameter x 0.75 metre deep - $87.76 per m Manhole concrete - 150mm base 230mm wall - 610 x 610 x 1000mm deep incl cover - $1760 Rainwater tank installation -Duraplas lattice - underyard- 5000 litre - $10,013 (includes, exavate & backfill, strainer, overflow, outlets, 1st flush,slab, supply pipework) Rainwater tank installation - polyethylene - above ground - slimline - 2000 litre - $1887 Plus GST, plus builder margin (if any) You can clearly see the difference between underground and ground level tanks. Did you have to build an an absorption trench? Re: Stormwaters and Water Tanks - total $46,350 8Nov 01, 2017 7:41 am rdcool Just a fixed pricing from the builder for Stormwaters and underground concrete water tanks which totals to a whopping $46,350. The total included in the tender was about $33,000 and i was told that this was a higher provisional allowance and will reduce once the actual hydraulic plans are done. I am feeling that the builder is ripping me off..... Can anyone with a similar situation or know about stormwaters related issue provide some advice as what i can do? Details breakdown were: Provide fixed price for Sewer including the following: • Repairs and replacement of Sewer Junction • Service and repairs to existing water service. Provide fixed price for Stormwater Connection as per Hydraulics Design: • Install 1 x 10,000 litre concrete below ground rainwater tank including pump and rainbank •100mm stormwater lines • 2 x 450mm concrete pits and grates • 1 x 300mm concrete pits and grates • 1 x Absorption Trench to rear • Cutting & Temporary Repair of footpath and concrete kerb outlet • Works As Executed (WAE) documentation, certification and inspections You should have got an independent Engineer Design,Data and proofs before you started $ticker $hock has been discussed many times before...Goodluck Designer,Engineer (Civil,Const & Envir),Builder,Concrete & Masonry Contract.Struct Repairs Re: Stormwaters and Water Tanks - total $46,350 9Nov 07, 2017 11:22 am rdcool Yes, for any buildings a 10,000L underground water tank is required. For existing dwellings, above tank can be used. Which council are you building in? How big for you site coverage? We received the notice from builder which said storm water consultant suggested us accommodate 12000L water tank. We are told by consultant that council requires OSD for all new dwellings and our site coverage exceeds 35%.The raintanks will be partially used for internal re-use and the balance for OSD. But our BASIX only requires at least 3000L water tank. So is it possible which we can reduce size for the water tank? T Thank you. Re: Stormwaters and Water Tanks - total $46,350 10Nov 08, 2017 10:04 am Home_17 rdcool Yes, for any buildings a 10,000L underground water tank is required. For existing dwellings, above tank can be used. Which council are you building in? How big for you site coverage? We received the notice from builder which said storm water consultant suggested us accommodate 12000L water tank. We are told by consultant that council requires OSD for all new dwellings and our site coverage exceeds 35%.The raintanks will be partially used for internal re-use and the balance for OSD. But our BASIX only requires at least 3000L water tank. So is it possible which we can reduce size for the water tank? T Thank you. I am with Willoughby council, they require a 10000L undergrond tank for new buildings. Apparently the most costly items are the absorption trench and concrete version of the tank. Do you have to have an absorption trench? Did they quote you a price yet? Re: Stormwaters and Water Tanks - total $46,350 11Nov 08, 2017 10:12 am rdcool Home_17 rdcool Yes, for any buildings a 10,000L underground water tank is required. For existing dwellings, above tank can be used. Which council are you building in? How big for you site coverage? We received the notice from builder which said storm water consultant suggested us accommodate 12000L water tank. We are told by consultant that council requires OSD for all new dwellings and our site coverage exceeds 35%.The raintanks will be partially used for internal re-use and the balance for OSD. But our BASIX only requires at least 3000L water tank. So is it possible which we can reduce size for the water tank? T Thank you. I am with Willoughby council, they require a 10000L undergrond tank for new buildings. Apparently the most costly items are the absorption trench and concrete version of the tank. Do you have to have an absorption trench? Did they quote you a price yet? I am in Ryde Council. We haven't required quote for yet. We are still discussing with consultant and builder about this huge tank and location to install. Re: Stormwaters and Water Tanks - total $46,350 12Nov 11, 2017 7:24 am I thought "compulsory" tanks was a thing of the past ? We have underground tank - very useful - and not a space waster - but the actual "savings" in eco terms are non-existent. It costs so much to get the water out of the U/g tank - ie the pump/electricity. --------- Later ... Oops - am I missing the point on this ? Re: Stormwaters and Water Tanks - total $46,350 13Nov 11, 2017 9:45 am Compulsory expensive Eco water tanks..that's bu!!$#i) Boy.... are you guys being ripped off over east Do The math $50,000/12,000 lt = $4.16 per litre of water or $4160 per kilo litre The actual cost of scheme water is around $2 per 1000lt (kilo litre) or the scheme water value in the tank is worth $24 That's Green Politics & Council bureaucracy gone mad. Designer,Engineer (Civil,Const & Envir),Builder,Concrete & Masonry Contract.Struct Repairs Re: Stormwaters and Water Tanks - total $46,350 14Nov 11, 2017 9:52 am Saint Mike I thought "compulsory" tanks was a thing of the past ? Not in some States but the OP's tanks are also detention tanks. Saint Mike We have underground tank - very useful - and not a space waster - but the actual "savings" in eco terms are non-existent. It costs so much to get the water out of the U/g tank - ie the pump/electricity. Then you, like so many others, have been sold an expensive oversized pump that wastes energy and has a hard life operating outside its power curve because it is supplying a high use, short duration, low flow fixture. 3in1 Supadiverta. Rainwater Harvesting Best Practice using syphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost syphonic eaves gutter overflow solution. Re: Stormwaters and Water Tanks - total $46,350 15Nov 11, 2017 9:58 am Hi H2O - not necessarily. We didn't stop the tanks being compulsory - the "powers that be" decided - after weighing up all the factors - that the "savings" were actually not there. The building - plastics, power used before and after, etc - meant there was no "REAL" savings in eco terms. It wasn't me - honest ! Tanks are therefore not necessary anymore - at least here. Re: Stormwaters and Water Tanks - total $46,350 16Nov 11, 2017 9:58 am Oops - I meant no longer "compulsory" ... Re: Stormwaters and Water Tanks - total $46,350 17Nov 11, 2017 10:11 am LoOve the irony "Detention tanks"... still, thats no excuse to rip off the Battlers & Punters because Council stormwater infrastructure systems are inadequate It's no wonder you guys can't afford housing Designer,Engineer (Civil,Const & Envir),Builder,Concrete & Masonry Contract.Struct Repairs Re: Stormwaters and Water Tanks - total $46,350 18Nov 11, 2017 11:06 am Saint Mike - the "powers that be" decided - after weighing up all the factors - that the "savings" were actually not there. The primary focus should be on saving a precious resource, not on saving money but done correctly, both aims can be achieved. Cost wise, people get ripped off by the installers that the builders are in bed with, not only on cost but also by poor product choices and endemic substandard installations. Regulations are also stuck in the dark ages...or at least pre Millennial drought times. Big water savings use to be had by plumbing to the toilets but there were single flush 12 L cisterns back then, now new homes have low volume dual flush cisterns. It would still be worthwhile plumbing stored rainwater to cisterns if not for nearly all installations being unnecessarily expensive either due to greed (commercial tie ins with expensive products), lack of knowledge or lack of care. Unknowledgeable bureaucrats then decide that the idea itself is bad. Plumbing filtered rainwater to a HWS is now the best utilisation for the harvested resource. It is ironic that expensive detention systems are specified when ground water levels are falling because of the obscenely high % of suburban impervious area that of course also includes roads. Why not have groundwater recharge points that accept filtered stormwater overflows from a retention tank instead? 3in1 Supadiverta. Rainwater Harvesting Best Practice using syphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost syphonic eaves gutter overflow solution. Re: Stormwaters and Water Tanks - total $46,350 19Nov 20, 2017 7:01 pm I feel your pain. In the Northern Beaches area, our stormwater is costing us 33k+ (not including the rainwater tanks). The council is forcing us to do above ground/surface detention. So we have to put around our land a 50-60+m waterproof, masonary retaining wall. We went from a 15k PA (for stormwater OSD) to 33k+, probably more, as we will probably have to rip down and existing retaining wall. Re: Stormwaters and Water Tanks - total $46,350 20Dec 02, 2017 9:45 am rdcool Home_17 rdcool Yes, for any buildings a 10,000L underground water tank is required. For existing dwellings, above tank can be used. Which council are you building in? How big for you site coverage? We received the notice from builder which said storm water consultant suggested us accommodate 12000L water tank. We are told by consultant that council requires OSD for all new dwellings and our site coverage exceeds 35%.The raintanks will be partially used for internal re-use and the balance for OSD. But our BASIX only requires at least 3000L water tank. So is it possible which we can reduce size for the water tank? T Thank you. I am with Willoughby council, they require a 10000L undergrond tank for new buildings. Apparently the most costly items are the absorption trench and concrete version of the tank. Do you have to have an absorption trench? Did they quote you a price yet? I am in a similar boat, and I have been quoted $33,000 for hydraulics set up. My tender had a PA for 17K and was advised that was on a higher side!! Its interesting how the actual tender quote came up lower compared to original provisional quote, and that was used a selling tact/example by CSR to demonstrate how builders surprise customers by always putting provisions at higher side and customers end up saving money. But since the date contract/tender was signed - everything has been opposite and costing more! Maj-35 Tend:14/7/17,Cont:18/8/17,DA:9/1/18,DEP:1/2,Const:8/3, Slab: 28/3,Frames:17/4-23/4,Bricks:22/5-14/6,URoof: 29/6,elec:4/8,AC,GRoof:11/8,gyp:24/08,Keys:4/12,move:16/12 That was always going to be a challenge and a test of patience. Full marks to your mate. Did you discuss the wet area near the trampoline? 16 17630 Grab a hose, insert it at the top of the inlet/down pipe and turn the water on and see where the water is escaping from. Then you'll know. 3 8761 |