Here are exact steps one can use to get COP 6.5 LENR device.

Apparatus:

Containers of fresh water above and below a container of salt water.
Membrane.
1HP pump connecting container below to container above.

Steps

1. Use gravity to push water down from top to bottom (see attached illustration)
2. Mix the fresh water in top container with salt water in middle container.
3. Measure the electricity produced.
4. Pass the salt water through a membrane to keep the salt in the salt water tank and allow the fresh water to pass.
5. Pump the fresh water back up.


Background:

background on membrane available at UofM:

tinyurl.com/l3xfvub

background on how to produce electricity by mixing salt and fresh water:

tinyurl.com/n4ysr6m

COP equation:

reference from phys.org article:

> The mixing generates a significant 2.2 kJ of energy per liter of fresh water that flows into the sea.

2.2kJ/1 liter = 1KW/400 gallons (conversion calculator)
1HP common off the shelf pool pump = 3000 gallons/hour uses 1KW of power to operate for 1 hour
3000-400 gallons(used to produce power for the pump)=2600 gallons excess
2600/400 = COP 6.5