Can I use Blue Mountain Co vent cowls on my toilet or portaloo?
Yes.
Yes.
For detailed installation instructions, visit the Support page for your chosen product.
Vent cowls are optional for rainwater tanks with and without Maelstrom filters. However, the benefit of a vent cowl is that it will ensure the unrestricted flow of fresh air within your tank.
Both standard and weatherproof vent cowls allow fresh air to circulate within your rainwater tank. Weatherproof vent cowls incorporate a cap that shields the stainless steel screen from light (UV) and the weather. They can be used to provide a light (UV) and weather-proof vent on the top surface of your rainwater tank.
Fine particles can accumulate on your tank screen’s mosquito-proof mesh. This may block the water flow. To prevent this problem, regularly maintain your tank screen or replace it with a Maelstrom filter.
No.
No.
Your tank outlet may be blocked by a blocked Mozzie Stoppa or another obstruction. Alternately, the bottom of your tank overflow may sit above the base of your tank inlet screen and/or tank inlet.
Check your overflow outlet for the presence of a Mozzie Stoppa or other obstruction. If a Mozzie Stoppa is installed, remove and inspect it and clean if necessary before reinstalling it at the outlet or replacing with a Mozzie Stoppa Easy-Clean. Remove any other obstructions from your tank overflow outlet.
If a blocked Mozzie Stoppa or other obstruction is not the cause of your inlet overflow problem or if your inlet overflow problem persists, check to ensure that you have an appropriate height tank overflow for your tank. The bottom of your overflow should sit below the level of your tank inlet screen. If you have an overflow that sits above the base of your tank inlet, you will need to replace it with a lower tank overflow.
For detailed maintenance instructions, visit the Support page for your chosen product.
It is common to have two 90mm (3″) pipes feeding a single tank screen. If additional pipes are plumbed, it is important to consider the capacity of your tank overflow outlets. Your outlets should balance your inlet pipe volume so that the combined cross-sectional area of the inlet pipes does not exceed the cross-sectional area of the outlet. You may need to install an additional tank overflow outlet or enlarge your existing one to accommodate the volume of water from additional inlet pipes.
Water bounce occurs when fast flowing water from your tank inlet pipes “bounces” off your mosquito-proof tank inlet screen, reducing your water catchment efficiency. This may occur during heavy downpours, when too many pipes are feeding a single screen, or if your mosquito-proof tank inlet screen has become obstructed by leaves and debris. Replacing your tank inlet screen with a mosquito-proof Maelstrom filter is an effective way to prevent water bounce and improve your water catchment efficiency.
In many places, mosquito-proofing your tank overflow outlet is a legal requirement. Even if it’s not legally required, it’s wise to mosquito-proof your tank outlet to keep mosquitoes and other pests out of your rainwater tank. You can do this using a mosquito-proof tank outlet screen such as a Mozzie Stoppa Easy-Clean. All our tank overflow kits come with a mosquito-proof Mozzie Stoppa screen.
When connecting two tanks, it’s best to connect them at the base. It is important to ensure that the tank receiving water from the roof or other catchment area has an overflow outlet.
Yes. We recommend installing your high level overflow with the bend facing directly upwards, however, it can also be installed on an angle to adjust the upper level. This may be necessary to ensure the overflow level stays below the base of your tank inlet and/or tank inlet screen.
The bend on your high level tank overflow should face up towards the top of your tank in order to increase your tank’s storage volume and overflow height.
You can choose to use a gasket or silicon to secure your overflow to your tank. A gasket is not required if you use silicon. All our tank overflow kits come with a gasket.
You can choose to use a gasket or silicon to secure your overflow to your tank. Silicon is not required if you use a gasket. All our tank overflow kits come with a gasket. let.
You should match the diameter of your tank overflow to the diameter of the tank overflow outlet.
Whichever tank overflow product you choose to use, your overflow needs to sit below the base of your tank inlet screen. High or extra high tank overflows offer a simple and effective way to increase your tank’s storage capacity, however, these products are only appropriate if the top of the overflow sits below the base of your tank inlet screen.
Your tank outlet may be blocked by a blocked Mozzie Stoppa or another obstruction. Alternately, the highest point on your tank overflow may sit above the base of your tank inlet screen and/or tank inlet.
Check to ensure that you have used an appropriate height tank overflow for your tank. If you have used a high or extra-high overflow that sits above the base of your tank inlet, you will need to replace it with a standard tank overflow or a lower tank overflow.
If your tank overflow is not the cause of your inlet overflow problem or if your inlet overflow problem persists, check your overflow outlet for the presence of a Mozzie Stoppa or other obstruction. If a Mozzie Stoppa is installed, remove and inspect it and clean if necessary before reinstalling it at the outlet or replacing with a Mozzie Stoppa Easy-Clean. Remove any other obstructions from your tank overflow outlet.