best household stuff to use for a dredge nozzle

The pond was made 40 years ago when someone dammed the stream. It was built by the same guy.backwoodz prospecting.I have a small stream fed pond (20'x40') in Northern Michigan that is surrounded by mature trees. I cant find the exact pump I have but here is a smaller says its 200 gallon per minute 2 inch inlet with 1 and 1/2 inch discharge.mine was a 2 inch inlet with 2 inch discharge that was supposed to be 325 gallon per minute. I moved the sluice and pump and repositioned everything so the pump was upriver pumping downward to the nozzle and then the sluice sat further down river.still nothing.after a few hours of messing with it, it quit picking up water and pumping all together.am I using too much hose? or maybe a bad seal? and possibly bad plastic reducers? I'm not sure what brand pump but ive seen videos of the same one running a 4 inch dredge and he claimed it was only half throttle. I turned the pump off and reattached it but still couldn't get it to pump enough to vacuum. it had good blew water about 15 feet and almost shot out of my hand. it was slightly leaking a small amount of water in between the pump and the engine.the pressure hose ended up coming loose and popped off the nozzle. when I first cranked the pump on it was pumping but just a slow trickle was coming out of the sluice. it has a 2 inch cam lock and 2 reducers the first is 2 to 1.5 and then another one that's 1 to 1.25. I'm running a 3 horse predator engine with a pump that's supposed to be 325 gallons per minute. I have a jobe footvalve and made sure I primed the pump so there was no air in the foot valve.

20 ft of 2' suction hose and about 6 ft of 2 inch for the pickup hose. I'm using a jobe suction nozzle that has a 1.25 inch pressure hose and a 2 inch suction hose. The sluice has a jobe stand it sits on as well. it is a keene a 52 sluice with a jobe 2 inch highbanker / dredge hopper. I have a 2 inch dredge / high banker combo I put together.

Best household stuff to use for a dredge nozzle