While working on a different black tank issue, I decided to finally add a black tank flush system. My hope is that it will keep my sensors clean and accurate. It seems like most times when I dump my black waste tank the 1/3rd and 2/3rd sensors have been staying "on" and that forces me to get out the hose and wand, run it all through the window, down the toilet, etc to get it clean (what a pain). Hopefully this works...
I picked the Tornado tank flush system. You can find it here or on amazon...
https://www.campingworld.com/tornado-permanent-tank-rinser-with-remote-connection-28091.html
In order to drill the hole in the rear of the tank (so it is blasting water towards the drain), I needed to remove the rear outer tire and the forward flap.
There is a template that comes with the system so it makes it easy to know exactly where to put all the holes.
Apply lots of silicon and fasten the unit to the tank...
I added an elbow to reduce hose strain.
I ran the hose to the drain valve area (seemed like a good place), ziptied it up and out of the way, and cut the hose to length.
Here's a modification I made to the Tornado system that should help me and hopefully others can take advantage. I noticed that the spray pattern was not ideal for my tank and sensor setup. The head of the device that is inserted into the black waste tank spins so it sprays water pretty good. Here is what it looked like out of the box...
I felt like it might not hit my sensors as much as I want to get them clean. So I took the smallest drill bit I have and added two more holes in just the right spot so that the water will hit the area it was missing. I tested it all (uninstalled) on my driveway and it created the pattern I was looking for. Here is what it looks like:
Total time to install was probably about an hour with much of that involving jacking up the RV, placing jacks (for safety) and removing the outer dually tire.
I'll let the silicon dry and then test it out.
If this works as I hope it does, it will be so nice keeping my tank clean after dumping and more importantly my sensors clean without ever having to bring a hose through the window and wand down the toilet again.
Happy Camping!
Chris
Update: I was doing another black tank project and accidentally broke the outside connection of the Tornado Flush. So I bought a new one. When I used the same silicon sealant it started having a small leak at the sealant connection. I tried a couple times (with water thankfully) and it kept leaking just a little. So I removed it, cleaned off the surfaces, and used Sikaflex-291 after some research. Here is the link:
https://www.amazon.com/gp/product/B089SDNLF6/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
Marine grade. Made for "below water line" connections. Zero leaks and I feel great it will stay that way. Good luck!
I picked the Tornado tank flush system. You can find it here or on amazon...
https://www.campingworld.com/tornado-permanent-tank-rinser-with-remote-connection-28091.html
In order to drill the hole in the rear of the tank (so it is blasting water towards the drain), I needed to remove the rear outer tire and the forward flap.
There is a template that comes with the system so it makes it easy to know exactly where to put all the holes.
Apply lots of silicon and fasten the unit to the tank...
I added an elbow to reduce hose strain.
I ran the hose to the drain valve area (seemed like a good place), ziptied it up and out of the way, and cut the hose to length.
Here's a modification I made to the Tornado system that should help me and hopefully others can take advantage. I noticed that the spray pattern was not ideal for my tank and sensor setup. The head of the device that is inserted into the black waste tank spins so it sprays water pretty good. Here is what it looked like out of the box...
I felt like it might not hit my sensors as much as I want to get them clean. So I took the smallest drill bit I have and added two more holes in just the right spot so that the water will hit the area it was missing. I tested it all (uninstalled) on my driveway and it created the pattern I was looking for. Here is what it looks like:
Total time to install was probably about an hour with much of that involving jacking up the RV, placing jacks (for safety) and removing the outer dually tire.
I'll let the silicon dry and then test it out.
If this works as I hope it does, it will be so nice keeping my tank clean after dumping and more importantly my sensors clean without ever having to bring a hose through the window and wand down the toilet again.
Happy Camping!
Chris
Update: I was doing another black tank project and accidentally broke the outside connection of the Tornado Flush. So I bought a new one. When I used the same silicon sealant it started having a small leak at the sealant connection. I tried a couple times (with water thankfully) and it kept leaking just a little. So I removed it, cleaned off the surfaces, and used Sikaflex-291 after some research. Here is the link:
https://www.amazon.com/gp/product/B089SDNLF6/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
Marine grade. Made for "below water line" connections. Zero leaks and I feel great it will stay that way. Good luck!
Nice job and the pictures and diagrams of your mods to the sprayer is a plus. The mod to the sprayer should be helpful in the cleaning of the tank better.
On my previous RV I had to do as you did and drag a hose thru the window with a wand,what a mess. Then I tried the Flush King,what a waste of time and money, it didn't do anything but waste water and did not clean the sensors as the wand did.I had no access to the tank to install a washer so on this RV the first thing I did was to install a Quickie Flush and it works great.
Now it has been there 11 years,with no sign of fatigue or breaking with the brass fitting attached.
To answer another question,both my Quickie Flush and the Tornado specify in the instructions to use Silicone.
Step#7 " Remove dirt, grease, and moisture from area around the opening. Apply 100 percent silicone sealant into the 1/8 inch holes. Cover entire inside flange of Tornado with 3/16 inch of silicone sealant. If the spacer is used also apply silicone to the spacer. Do not get any silicone on the Tornado spray head".
On my previous RV I had to do as you did and drag a hose thru the window with a wand,what a mess. Then I tried the Flush King,what a waste of time and money, it didn't do anything but waste water and did not clean the sensors as the wand did.I had no access to the tank to install a washer so on this RV the first thing I did was to install a Quickie Flush and it works great.
Now it has been there 11 years,with no sign of fatigue or breaking with the brass fitting attached.
To answer another question,both my Quickie Flush and the Tornado specify in the instructions to use Silicone.
Step#7 " Remove dirt, grease, and moisture from area around the opening. Apply 100 percent silicone sealant into the 1/8 inch holes. Cover entire inside flange of Tornado with 3/16 inch of silicone sealant. If the spacer is used also apply silicone to the spacer. Do not get any silicone on the Tornado spray head".
