How to FRY your Delavan...Roof Cleaning

I was installing a Delavan and cracked the threads on the pump head.

Lori, what is the price for the pump head on the 2gpm 60psi Delavan? I think it is the 5800 model.

I tried to be careful with the second pump and it also cracked but not as bad. I will try to use it and see if it works. Looks like I might have to replace 2 pump heads for the prespray system on the trailer if this second one that cracked will not work.
 
More than likely the burn out problem is a wiring setup issue. We run 300 feet of 1/2 hose with no problems. The motor that cycles off and on is designed to work that way. If your wiring is too small especially with the amp greedy fatboy. Feel your wiring,clamps and motor for heat. If its hot you are probably drawing too much current. You need to upsize your wiring and maybe improve your connections. A small hose will make the pump work harder but it is workable.
 
Christopher said:
I was installing a Delavan and cracked the threads on the pump head.

Lori, what is the price for the pump head on the 2gpm 60psi Delavan? I think it is the 5800 model.

I tried to be careful with the second pump and it also cracked but not as bad. I will try to use it and see if it works. Looks like I might have to replace 2 pump heads for the prespray system on the trailer if this second one that cracked will not work.
Click to expand...

Get a Gas powered pump!!! Please
 
Get an All-Flo Air diaphragm pump with the standard 5 YEAR WARRANTY and designed for chlorine!

You can use a 2.0 tip to apply the chemical if you choose. YOU SAVE A TREMENDOUS AMOUNT OF MONEY ON CHEMICAL using the air diaphragm and compressor set-up.
 
Christopher said:
I was installing a Delavan and cracked the threads on the pump head.

Lori, what is the price for the pump head on the 2gpm 60psi Delavan? I think it is the 5800 model.

I tried to be careful with the second pump and it also cracked but not as bad. I will try to use it and see if it works. Looks like I might have to replace 2 pump heads for the prespray system on the trailer if this second one that cracked will not work.
Click to expand...

I will have to call on Monday to find out the price.

Thanks for the question, Chris.
 
PWProducts said:
Get an All-Flo Air diaphragm pump with the standard 5 YEAR WARRANTY and designed for chlorine!

You can use a 2.0 tip to apply the chemical if you choose. YOU SAVE A TREMENDOUS AMOUNT OF MONEY ON CHEMICAL using the air diaphragm and compressor set-up.
Click to expand...

Excellent advice!!......from a distributor. :rolleyes:
 
mike barrett said:
Hi Lori, how will an air diaphragm pump save chemical over a electric pump? Thanks Milke
Click to expand...

It saves a tremdous amount. These electric pumps will perform poorly or alter when you restrict the flow.

Air pump will still push chems in a lower volume thus reducing the drowning affect witch saves you money in Chems.

I left Electric years ago when Fleetwashing, the only thing we use Electric was to spray acid. We only did that because of the control issues.

Maybe someone else can explain the benifits better, I have been out of the game so much I downstream everything now.
 
Scott D. said:
Excellent advice!!......from a distributor. :rolleyes:
Click to expand...


Scott, have you ever used air? I have used both. If you had bad luck with air please tell me what the set up was?

I imagine everyone that uses air will save money and speed production. This means more profit.
 
I have used most types of pumps, air, electric, roller, etc...all are excellent choices. I was in Florida this week and worked with Don with a Udor Zeta. Awesome pump, but it was overkill for residential roof cleaning. You just don't need that much flow when its wide open. He had it dialed back to 5gpm which is exactly what the fatboy pushes at the end of 200' of 1/2".

Air pumps are the same. They have awesome flow. Again, there's only so much volume you can push before you start wasting chemicals. We can usually be in and out of a property in under 2 hours.

So, I don't have a problem with the air pumps, they're just not needed.

And the 1/2" works fine with the Fatboy. Been using it for over a year.if there is a problem, it is either an issue with wiring or an issue with the pumps themselves, which is what it sounds like to me since the problems have come all of the sudden.
 
Bingo man. If someone is pushing you to go to an air pump and you do residential, they know they are going to make money from the chem sale. Total waste of chems. I run the same set up you do. No problems with the Fat boy after a year. Biggest thing is setting the pressure switch and making sure there is not a pressure gauge anywhere near your equipment.
 
offdutyfireman said:
Bingo man. If someone is pushing you to go to an air pump and you do residential, they know they are going to make money from the chem sale. Total waste of chems. I run the same set up you do. No problems with the Fat boy after a year. Biggest thing is setting the pressure switch and making sure there is not a pressure gauge anywhere near your equipment.
Click to expand...

I'm pushing anything but electric for flleets... I did this for 25 years. You wash trucks with electric your going to love gas motor driven chem pumps. Get air, get gas driven... get anything but electric unless is electric being pushed with plunger pump.

I thought I was answering Chris question guys.


It my opionion too, I love air and triplunger pumps for pushing chems.
 
For fleet washing. , that's great. You need volume. For residential roof cleaning, you are throwing money down the drain. First in the purchase of the equipment, then with the chems. Guys, when looking for what equipment works best, talk to guys in the field, not distributors.
 
Attn Roof guys, these Delavans might be great for roofs and washing homes. I would have no idea, I dont use them and never will hopefully.

I love pushing most chems with my pressure washer. When I pushed dangerous stuff I always used a separate tank. Used Air or chem pumps with 5.5 horse honda.

I used Electric pumps and they all sucked.
 
Scott D. said:
For fleet washing. , that's great. You need volume. For residential roof cleaning, you are throwing money down the drain. First in the purchase of the equipment, then with the chems. Guys, when looking for what equipment works best, talk to guys in the field, not distributors.
Click to expand...

Your supposed to be able to reduce down with this Allflo. I cant verify that because I never have owned one.

I can tell you there will be a contest in Florida soon about this subject.

I will in July have around four versions of pumps and we will see whos in the best.

I'm very interested to see this delavan out perform air. I might buy a few if thats the case.

I just cant see having non moving parts verses moving and have less problems.

I let you in on a secret, all the money we spent was on chem tanks. Ones that would hold 500psi. We use electric 12volt compressors...No motor at all. We regulated the pressure at 150 to spray and never had trouble. We only need to shoot 30 feet.
 
Ron, what's the point of spending all that money on a air setup that can outflow an electric pump, then reducing it down to perform the same as a $220 pump? Seems like a waste of money. It would be like buying a ferrari, then governing it to perform like a prius. No doubt ferraris perform better, but for a daily commute, the prius is more than enough.
 
The 2 Delavan pumps that I cracked the heads on were for pre-spraying the trucks, and for spraying degreaser.

I wore out some of the pump-up sprayers and they only hold so much chemical so you have to stop and make up the chemical and fill them up again.

Downstreaming will put the degreaser on too thin, does not work too good on the trash trucks, need a stronger solution.

That is why I was going to use the Delavan, have a pre-made degreaser in a 15 gallon tank so just grab the gun, turn on the pump and spray. When done, turn off the pump and roll up the hose. Faster and easier than pump-up sprayers and should last a long time.

I don't have an air compressor large enough for the AllFlo air diaphragm pump or I would think about using that instead but since I have the Delavan pumps I would just use one and see how long it lasts.

It is too bad that Lori does not ship the chemicals out of florida, I would really like to use some of those great chemicals that Larry, Nick, Kory, Steve and the other guys there use and have such good results with.
 
Scott D. said:
Ron, what's the point of spending all that money on a air setup that can outflow an electric pump, then reducing it down to perform the same as a $220 pump? Seems like a waste of money. It would be like buying a ferrari, then governing it to perform like a prius. No doubt ferraris perform better, but for a daily commute, the prius is more than enough.
Click to expand...

I don't sell either one, I just know Air is better when it comes to spraying chems.

It just my opionion!!

I own a landa , its likely double the cost of most.

My surface cleaner is a water jet , its double or often triple most.

I drive a focus because gas shot thru the roof and diesel fuel doubled.

I don't spray roofs, if I was a roof guy I would try both before I settled on this electric pump.

I will put all four I know of to a side by side test in TAMPA.

There will be video. I'm not affraid of the distributors that might not like it. I want my fellow contractors to know the alternatives.

Scott I respect your belief in Delavans. Ive been wrong before, could be worng this time.
 
Ron, I don't pretend that the delevans dont have their problems, and I also know that they are FAR out performed by more expensive setups, but I am also a believer of not buying more than you will need.
 
You must log in or register to reply here.
Back
Top