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Old 07-04-2022, 11:16 PM   #1
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How Do I Sanitize the Water Tank on Allego Red?

Weíre newbies who just purchased a used 2014 Allegro Red. We know the fresh water tank needs sanitizing, but I donít know how to get the water-and-bleach solution into the tank. Iíve read the manual which talks about attaching a hose to a pump. But which hose, and which pump? I see a water pump in the wet bay, but Iím not sure what to do with the darned thing.

Is there another way of getting the bleach solution into the tank?

Also, I think Iím supposed to bypass the hot water tank when sanitizing with bleach, but Iím not sure where the bypass valve is.

And, if I do bypass the hot water tank when sanitizing, how does it get clean?

I hope someone here can point me in the right direction. Iíve scoured YouTube and the manual looking for guidance with no luck, and it sure would be nice to have clean water! :-)

Thanks!
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Old 07-04-2022, 11:40 PM   #2
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Look at the suction side of pump for a 'valve with hose'
That is the hose to use for sucking bleach solution up using the pump
*close suction valve from fresh water tank

Plumbing service compartment is the City Water / Fill Valve
Turn it to FILL. turn on pump and pump will discharge bleach solution into fresh water tank

After pumping...
Close 'Hose Valve'...open Fresh water tank valve
Connect water hose to city water connection and fill fresh water tank
Turn off when tank is full

Remove filter from filter canister....install bypass pipe if you have one....otherwise put empty canister back on for pumping bleach solution thru system

Turn pump on and pump bleach solution thru plumbing lines.....cold & HOT (thru WH Tank) to each faucet, shower, toilet, low point drains etc o bleach solution is in all plumbing lines
*no need to BYPASS the WH Tank
(Bypass when doing winterizing using anti-freeze....no anti-freeze into WH Tank, just drain it)
Bypass Valve is in outside compartment next to Water Heater


Leave bleach in lines for several hours....longer the better'
Then drain/flush/rinse fresh water tank
Turn pump on and flush/rinse cold/hot plumbing lines thru filter, all faucets, showers, toilet, low point drains etc


2014 Allegro Red Manual
https://tiffinmotorhomes.com/sites/d...ers_Manual.pdf



If the above is too much...
Pour straight bleach into the end of your potable water hose (in quantity corresponding to fresh water tank capacity) then hook hose to city water connection, set Valve to FILL and turn water on filling tank.
Then use pump (valve set to city water) and pump fresh water tank bleach solution thru plumbing lines
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Old 07-04-2022, 11:50 PM   #3
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Old-biscuit has a pretty good write-up. I will add this:
- You want to use basic bleach. Do not use color safe bleach, definitely do not use "splashless bleach" use just a plain bleach.
- 1/4 cup for every 16 gallons of water.
- If you have an ice maker, remember to turn it on, and let it run overnight to make sure you get water flowing all the way through it. This will also give a chlorine plenty of time to do its thing in the tank and piping.
Remember to replace any and all filters you have after the rinse cycle.
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Old 07-05-2022, 03:49 AM   #4
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We have a 2014 RED and I have sanitized it 2 different ways. The first was to pour bleach directly into the fresh water tank using a funnel and the fill tube on the passenger side of the coach. the second is to use an external water filter holder, hooked up to the inlet for the water supply. First I removed the water filter, then I put the bleach into the filter holder, attached it to the water hose, then filled the fresh water tank. For both procedures, I then ran all the water lines until the bleach solution was in each line, then shut them off. I waited a couple of hours before I then used fresh water to fill the water tank and flush all the water lines. I was hooked up to sewage, so I left the grey tank valve open for this procedure. I emptied the fresh water tank at least twice to get rid of the bleach solution.
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Old 07-05-2022, 07:58 AM   #5
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I just pour the bleach into the water hose, then attach it to your water source and fill the tank like normal. After removing your house filter first, if course. Then run all your faucets to get the water into the lines.

At the last Tiffin rally, an expert there suggested you use 2 tsp of powdered pool shock (calcium hypochlorite). May try that next time.

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Old 07-06-2022, 07:04 AM   #6
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We have a 2019 Allegro Red 33AA, and I've got a checklist for everything:

Level RV
Turn off electric water heater
Turn off gas water heater
Value to City Water
City water spigot off
Water pump off
Tilt RV toward drivers side (see notes below)
Empty fresh water tank: If full, 11 minutes when level, 6 minutes more with tilt
Remove water filter
Mix and add sanitizer to fresh water tank (see notes below)
Valve to Tank Fill
City water spigot on
Fill fresh water tank: About 35 minutes (see notes below)
City water spigot off
Water pump on
Open and run until bleach smell:
- Outside shower
- Kitchen sink
- Bathroom sink
- Bathroom shower
- Dishwasher
- Washing machine
- Toilet
Let sit for 4 hours
Water Pump off
*** Drain fresh water tank: 11 minutes when level, 6 minutes more with tilt
City water spigot on
Fill fresh water tank: About 35 minutes
City water spigot off
Water pump on
Open and run until no bleach smell:
- Outside shower
- Kitchen sink
- Bathroom sink
- Bathroom shower
- Dishwasher
- Washing machine
- Toilet
Water pump off
Repeat from "*** Drain fresh water tank" until no bleach smell
Install water filter
Water pump on
Run hot water in kitchen and bathroom till no air
Turn on electric or gas water heater
If city water available
- Water pump off
- Valve to City Water
- City water spigot on

Some notes:
- I do the disinfecting at the first campground with full hookups we stop in the spring. I empty the freshwater tank be positioning the sewer hose under the freshwater drain spigot so the water drains into the sewer.

- With all slides in, I tilt the RV toward the driver's side to more fully empty the freshwater tank. I use the manual controls on the leveling system.

- To add the bleach: there is a gravity fill inlet on the passenger side - it's covered by a small door with a lock. Open the door and you'll see the fill tube.

- The RED has a 90 gallon freshwater tank. I use 4.5 gallons of sanitizer added threw the gravity fill inlet. I make sanitizer in 3/4 gallon batches by mixing Clorox with water: add water to 1/4 cup of Clorox.

- You can tell when the freshwater tank is full by watching for water discharging from the freshwater tank overflow hose. The overflow hose is on the passenger side near the bottom of the RV close to the freshwater fill inlet.
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