When it comes to pumping water there is a vast amount of options available to choose from however you need to be certain of the requirements in your system otherwise you are likely to find that the particular pump you have is not fit for purpose.
The Joolca branded pump is specifically designed to be used with the HOTTAP, however if you have your own pump or have a use case with the Joolca pump won't suit, that is perfectly fine.
General Specifications Required:
When it comes to the HOTTAP Hot water system the ideal specifications for the pump are that it flows at least 6 litres per minute and no more than 12. You are also looking for a pressure level around 60 PSI. Meeting these operating ranges will ensure optimal operation from the HOTTAP system.
Main types of pumps you may come across are:
Centrifugal water pumps:
These style of pumps generally consist of one or more impellers typically driven electrically. You will find Bilge pumps fall under this category. These style of pumps are not suitable for the HOTTAP due to their nature of providing high water flow rates but low water pressure. We have found from past experience that generally these will not have the required water pressure to activate the pressure switch in the HOTTAP.
Positive displacement pumps (AKA Pressure Pumps):
PD pumps do not have impellers, instead, they consist of either rotating or reciprocating parts and generate high pressure to push the water along the system. These style of pumps will generally provide lower flow rates than centrifugal style pumps however provide much higher water pressure. These style of pumps are ideal for the HOTTAP system and as long as the specifications are within 6-12 litres per minute and around 60 PSI it will be perfect for the HOTTAP system.
The Joolca FLOTAP has been extensively engineered and tested to push water over a long distance so you will easily be able to push water over 20-30 metres.
Although the pump is also able to pull water due to its specific design it is much better at pushing hence if you are pulling water expect around 1.8m pulling vertically and around 5 metres depending on angle of slope.
As you can see from the above the best way to set the pump up is close to your water source and lead the longer hose all the way to the camp site. This will allow you to fully appreciate the systems capability and truly enjoy that hot shower in the bush!
I have a camper trailer with a water tank. Do I need a pump to get water from the tank to the HOTTAP?
If you have a camper trailer with an onboard water tank, you may already have a pressure pump onboard. If you do have a pump, make sure it can provide anywhere from 6-12 LPM (litres per minute) and you'll be fine.
Then it's a matter of connecting your existing pump to the HOTTAP and you're good to go!
If you don't have a pump however, then you're best bet is to get the HOTTAP OUTING, which includes a 12V pump kit to be able to take water from the tank and push it through the HOTTAP.
You won't be able to just connect the HOTTAP to the water tank, as gravity won't provide enough pressure to get water flowing properly through the HOTTAP - that's why you always need pressurised water - either water from a garden tap at home, or a 12V pump if you're free camping.
The HOTTAP requires a minimum of 10PSI and 6LPM to operate across the full flow range.
You’ll find that a lot of pressure pumps will have a pressure setting of at least 40PSI. So, the important thing to focus on is the flow rate.
If you use a lower flow pump (e.g. 4.3LPM) you will be able to use the HOTTAP on the minimum flow setting, but, the unit will cut out as you increase the water dial toward maximum. This is due to the unit requiring more water than what is being supplied.