View Full Version : Bilge pump mounting
2ndchance
03-15-2007, 11:34 PM
Looking for some advice/opinions. I am going to put a new bilge pump in the 2ndchance (750 GPH with a float switch) and I would like to here how some you guys did yours. My plan is to put a dab of 5200 under the pump and let hold it. Other options will be considered.
2ndchance
03-15-2007, 11:34 PM
Looking for some advice/opinions. I am going to put a new bilge pump in the 2ndchance (750 GPH with a float switch) and I would like to here how some you guys did yours. My plan is to put a dab of 5200 under the pump and let hold it. Other options will be considered.
Airslot
03-16-2007, 12:10 AM
Sounds like a plan, but I'd use a bigger pump such as a Rule 1500. In my 87' there is a pad glassed in that the pump is mounted to.
Airslot
03-16-2007, 12:10 AM
Sounds like a plan, but I'd use a bigger pump such as a Rule 1500. In my 87' there is a pad glassed in that the pump is mounted to.
spareparts
03-16-2007, 12:53 AM
i like two 1500 gph pumps minimum, remember, the bilge pumps are rated at 14 volts with no head pressure. Drop the voltage down to 12 volts, add 6 ft of corrigated hose with about 3 ft of head, and you'll be lucky if that 750 pumps 250. Your drain plug hole will let well over 250 in if you happen to leave the plug out.
spareparts
03-16-2007, 12:53 AM
i like two 1500 gph pumps minimum, remember, the bilge pumps are rated at 14 volts with no head pressure. Drop the voltage down to 12 volts, add 6 ft of corrigated hose with about 3 ft of head, and you'll be lucky if that 750 pumps 250. Your drain plug hole will let well over 250 in if you happen to leave the plug out.
Stillrunning
03-16-2007, 11:41 AM
I have a flat plate right in front of my drain plug that I mounted mine to. I would use screws to mount both *because you do not want to take a chance of them comming loose. I would wire directly to the battery and to a switch on you dash. If you leave the boat in the water you may want to add a second float as a back up. My boat sank years back because the float switch failed in a day of very heavy rain and I was out of town. I also agree with others and go with a min. of 1500.
Stillrunning
03-16-2007, 11:41 AM
I have a flat plate right in front of my drain plug that I mounted mine to. I would use screws to mount both *because you do not want to take a chance of them comming loose. I would wire directly to the battery and to a switch on you dash. If you leave the boat in the water you may want to add a second float as a back up. My boat sank years back because the float switch failed in a day of very heavy rain and I was out of town. I also agree with others and go with a min. of 1500.
macojoe
03-16-2007, 03:08 PM
Most pumps come with its own bracket, try to use the biggest pump you can afford!!
Mount pump up off the floor of the bilge about 2 inches. This will keep all the heavy sand and stuff on the bottom.
If you don't you will suck up every thing from sand to what ever is in there and be burning up pumps faster then you can buy them!!
If you are leaving the boat in the water then you will need a float switch or a pump with a built in float & a 2nd battery.
macojoe
03-16-2007, 03:08 PM
Most pumps come with its own bracket, try to use the biggest pump you can afford!!
Mount pump up off the floor of the bilge about 2 inches. This will keep all the heavy sand and stuff on the bottom.
If you don't you will suck up every thing from sand to what ever is in there and be burning up pumps faster then you can buy them!!
If you are leaving the boat in the water then you will need a float switch or a pump with a built in float & a 2nd battery.
Blue_Runner
03-16-2007, 05:45 PM
In my 87' there is a pad glassed in that the pump is mounted to.
My '94 has the glassed in pad too. This allows you to screw the pump bracket in without worrying about screw holes in your hull. If yours has this, just make sure you don't use really long screws!
Blue_Runner
03-16-2007, 05:45 PM
In my 87' there is a pad glassed in that the pump is mounted to.
My '94 has the glassed in pad too. This allows you to screw the pump bracket in without worrying about screw holes in your hull. If yours has this, just make sure you don't use really long screws!
macojoe
03-16-2007, 05:48 PM
The last owner that had my boat used to long screws, when one rusted out I was left with a 1/8 hole in the hull, Its amazing how much water you get Thur that little hole in a short time!!
macojoe
03-16-2007, 05:48 PM
The last owner that had my boat used to long screws, when one rusted out I was left with a 1/8 hole in the hull, Its amazing how much water you get Thur that little hole in a short time!!
Blue_Runner
03-16-2007, 05:55 PM
Oh yeah I remember you saying that MJ. Not good!
Blue_Runner
03-16-2007, 05:55 PM
Oh yeah I remember you saying that MJ. Not good!
reelapeelin
03-16-2007, 06:46 PM
MJs suggestion about mounting the pump high is a good one...mount the float-switch high too in that case or it'll keep the pump on after it's dry...
I didn't go quite that high, but I 5200'ed a thick rubber pad directly to the bottom of the bilge, then used screws to mount switch and pump to the rubber...all held well for 6 years, but now I gotta do some maintenance on 'em ;) ... heck 6 years, I might just replace everything... :D ...
reelapeelin
03-16-2007, 06:46 PM
MJs suggestion about mounting the pump high is a good one...mount the float-switch high too in that case or it'll keep the pump on after it's dry...
I didn't go quite that high, but I 5200'ed a thick rubber pad directly to the bottom of the bilge, then used screws to mount switch and pump to the rubber...all held well for 6 years, but now I gotta do some maintenance on 'em ;) ... heck 6 years, I might just replace everything... :D ...
Airslot
03-16-2007, 06:58 PM
I'd like my pump mounted within 1/2" of the bottom. Thats high enough for the heavy debris to settle out. Mount the float 1" off the bottom. If using two pumps, mount them both low, but mount the backup's switch a bit higher.
Airslot
03-16-2007, 06:58 PM
I'd like my pump mounted within 1/2" of the bottom. Thats high enough for the heavy debris to settle out. Mount the float 1" off the bottom. If using two pumps, mount them both low, but mount the backup's switch a bit higher.
2ndchance
03-17-2007, 12:41 AM
Thanks, I like the idea of the rubber pad, sounds very easy to do. As far as the 1500 GPH I had thought about it. What the heck, the SWBO will have to understand it's for her own good ;D
2ndchance
03-17-2007, 12:41 AM
Thanks, I like the idea of the rubber pad, sounds very easy to do. As far as the 1500 GPH I had thought about it. What the heck, the SWBO will have to understand it's for her own good ;D
reelapeelin
03-17-2007, 05:37 PM
Thanks, I like the idea of the rubber pad, sounds very easy to do. As far as the 1500 GPH I had thought about it. What the heck, the SWBO will have to understand it's for her own good ;D
Just CLEAN OFF the bottom of bilge where ya gonna put it and when ya put the screws into the rubber, don't over turn...pre-drill 1/8th pilot hole and EASE 'em in... :D ...
reelapeelin
03-17-2007, 05:37 PM
Thanks, I like the idea of the rubber pad, sounds very easy to do. As far as the 1500 GPH I had thought about it. What the heck, the SWBO will have to understand it's for her own good ;D
Just CLEAN OFF the bottom of bilge where ya gonna put it and when ya put the screws into the rubber, don't over turn...pre-drill 1/8th pilot hole and EASE 'em in... :D ...
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