Mine must be lamb motors then, (I have twin vac 600psi Pro)
TBH the suction feels a bit weak, I think running 2" hose all the way helped today but I don't like running it up stairs, maybe thats just because my hose is dirty from TM use. A new hose for solely indoors would be ok.
Why is the 'hd electro' more powerful, and why not just fit them to all airflex?
Because it has a 1650w motor .
In a three stage motor the bigger the motor in watts the more lift it has .
A 1200w has about 120" lift
A 1400w has about 137" lift
A 1650w has close to 150"lift
Electro has also used a tapered fan design in some of its motors which improves airflow .
The 6.6 is a 1600w motor , however because its a two stage its lift is limited .. it produces little more than the 1200w three stage .... however the design with tapered fan gives very good airflow .
Why not use the HD Electro in all Airflex ?
Partly because they ( manufactures ) seem reluctant to fit two on the one cord .
You could have them in two cord version of the Airflex insted of the 6.6 .
No one in the UK has produced a machine like that yet .... in the states Mytee does this in its LTD5 /1005DX models ... other Mytees LTD3 etc use a 1400w motor .
The 6.6 has been a strong selling point over here so manufactures are perhaps reluctant to offer that option after investing in marketing the 6.6 in a two cord machine like the Storm .
The pro custom ( the version Robin is getting and the one in the video above) is an exact copy of the Enforcer ... Cleansmart seem to have cloned the Enforcer after getting their hands on it during the Youtube dispute .
It design sets out to maximize the vacuum on one cord ( to 13amps ) by using one 1650w Electro and one 1200w Electro and a 400psi pump .While using cord two for the largest water heater they are allowed to fit on one cord (3000W) 13amps .
Comparing it to the Storm is difficult ...
The storm has 130" lift and 275CFM
The Custom inseries has about 240" lift and 117cfm
Which is likely to be the better machine depends on the user ...
Do you need the big heavy 800psi pump if 400psi works fine ..
Would the convenience of inbuilt inline heater be better than hauling an external heater around or making do with tap water .