EXTENDEDWARRANTY

VACUUM PUMP

• My vacuum pump is very hot. After continuous use for an hour, it suddenly stopped working, what should I do? 
• I've been using the pump for three months, and there's a lot of oil mist coming out of the oil cap lately, is that normal?
• Were you able to pull a full 29inHg of vacuum? I could only get 27inHg.

And more links to Everything about Vacuum Pump

VACUUM CHAMBER

• I have installed and used this vacuum chamber in accordance with the instructions, but the vacuum only reached -25inHg. And after 20minutes, it was left with -20inHg, what should I do?
• I need the vacuum of -29inHg, why does the pressure gauge show only max -14?
• Were you able to pull a full 29inHg of vacuum? I could only get 27inHg.

And more links to Vacuum Chamber - Instruction - Checking Leak - Safety & Warning

CIRCULATION PUMP

• In the following two situations: a) The water heater does not have a return pipe; b) The water heater has a return pipe. Which pump should I choose to use? In what type of situation can I use a flow switch and a timer?
• How to use it in an underfloor heating system?
• What is lowest the power usage can be?
• What's the relationship between ⅠⅡⅢ and automatic & manual ?
• What's special about the new products?
• The difference between circulating pumps available in the market place.

And more links to Circulation Pump FAQ

ON DEMAND PUMP

• What are the inlet and outlet fittings?
• Is the pump very noisy?
• Is it a self-priming pump?
• What is the maximum temperature of liquid this pump can run?
• Can the pump run dry?
• I can't shut off my pump automatically. Why won't the pressure switch work?
• The motor is running, but no self-priming?
• Pumps start and stop frequently?

And more links to BACOENG ON DEMAND PUMP

UF WATER FILTRATION 

• Can UF filtration systems be harmful to mineral components such as heavy metals in the water, leaving only the beneficial minerals?
• Will the TDS value of UF waters change? If yes, Why?
• What the dimension of every filters?And where to buy?
• There is a large selection of different brandsof UF water filtration systems in the market place, how do I choose one?
• The water purifier discharges black water, can it be drunk?
• Install a filter but don’t use it for half a year, can I continue to use it?
• When using two weeks,the bottom of housing shattered. Why?And where can I buy the clear filter housing?

And more links to Why Choose UF Water Filtration System

RO WATER FILTRATION

•  Will TDS of RO filter change and can the TDS value determine if the RO membrane is still effective or not?
• How to test the RO water quality? 
•  I am worried that the storage tank will cause secondary pollution, what method can I use to clean it?
• If you do not want to use a water tank, is there any other way of getting a larger amount of water?
• The water purifier discharges black water, can it be drunk?
• Install a filter but don’t use it for half a year, can I continue to use it?
• When using two weeks,the bottom of housing shattered. Why?And where can I buy the filter housing? 

And more links to Why Choose RO Water Filtration System

POND VACUUM

• Can this unit discharge water while vacuuming, or must it go into the tank to be drained later?
• Does it come with the discharge hose?
• Can I use vacuum with fish still in the pond?

ASH VACUUM

• Where do I find replacement filters?
• Can hot ashes go in the canister?
• How many gallon dues it hold?