Almost all the time it takes off before I even pull the cord and I am still pumping,how do I fix this
924505
You should use a pump with a pressure gauge. Do not exceed the maximum pressure for the 2 liter bottle (40-50 psi). At that pressure you will get a great launch.
924506
The release is not just based on you pulling the cord. The release is mostly based on the pressure built up with the water and the air you pump into the bottle. We have three of these at our middle school and working with one of the other 7th grade teachers we take over 200 students out and do this for an entire day with very few "fails". If they over pump it or put in too much water they quickly learn that alters the performance.
924507
with the launcher have u used the rubber ring on the up spout. that will hold the pressure and make sure you have about a 1/4 of the bottle with water.. but make sure you are using the rings supplied that may be your issue.
924508
Hi, I've read the other 3 answers and I would have told you the same. Good luck...
924509
You have to buy a bunch of small rubber washer If yours didn't already come with 2-3 of them. It's the size of the bottle cap area. It keeps the bottle air tight to the launch pad so your problem doesn't occur. If you did use the rubber washer sometimes they start to break apart. I recommend buying a bunch to keep with the set.
1827759
My guess is that it will keep trying to pump until the motor burns out. That is a guess based upon it continuing to pump when I take it out to clean it.
1930791
I use premium fuel. it helps. Don't pull too hard or you will be replacing the cord. I had to replace my cord when mine didn't start and I pulled the cord out of the unit. I have the same problem. I've complained to Earthquake but they didn't seem to care.
416076
When that happens I would turn it off right away and unplug it. Then take a look under the bottom suction area to see if there is something obstructing the flow into the machine.
740650
If its hard to pump from the beginning, its not working properly. As pressure goes up it gets a little harder to pump.
693258
First, there is a cleaning setting. Let it run on that for a minute. You may have some calcium or dirt in the nozzle. Second, try lifting very slowly. You may have so much water pressure that you do not ever need to have it on full. Think small trickle and just keep pulling till comfortable. Hope that helps!
2133105
I just started pumping - push down on the top. It takes 5-8 pumps to start working, but it'll go eventually.
2091332
I had the problem with my pump continuing to run after the pressure should have shut it down. I called shurflo and they sent me a new pump. My old pump was less than one year old. Warranted for one year. Low battery can cause the same problem too.
1637086
One of your pumping pistons isn't re-extending for the next pump and so it's only pumping at half pressure.That's how mine died, I haven't figure out a fix yet.
1411925
That's how Ive been doing it. I use the key to remove the cap and then, remove the key immiediately. When Im finished pumping I just spin the cap back on.
1476589
I usually just let it sit with the plug pulled out, it takes about an hour. It doesn't fully deflate so you have to step on it. I don't have to deflate it usually so this doesn't bother me. :)
1126306
I found I had to tighten the hose on the outlet, which is a pain where it is located, to keep it running smooth. Use a wrench, but no so tight you break anything. We also have to keep the hose situated so it drains down the whole length of the hose, no rises as it goes towards the open end. Hope this helps
29531
You need to use a lot of pressure on larger end, but then once switched over it should stay on until you're ready to replace again. Good luck!
186496
I had the same issue and it took a while to figure it out. Since we use it rarely we don't recall how we finally did it. If I recall correctly, the pump mechanism really does not let the air out. I think we took the mechanism off the mattress. You'll have to experiment with it.
2033528
Make sure both pumps on top are working. They turn on independently every 6 seconds or so. Also you can use tongs or chop sticks to make sure all bubbles are off jellies. They do bunch up everyonce in a while till other pump kicks in and separates them;)
1091465
I have the exact same issue. I've tried everything I can think of but it doesn't seem to be removable. I just tie the cord together with a twist tie and use it with the cord dangling out the bottom.
1712967
It usually takes two to three turns to free it entirely, but if you're still having trouble, you may have a faulty pump :( sorry!