- When a Problem That’s Not a Problem Gets a Disgusting Solution
- Yes You Can Flush Toilet Paper On a Boat
- Things to Consider Before Flushing Toilet Paper on A Boat
- Urine Chrystals Are The Enemy
- What Cannot Be Flushed Down a Boat Toilet:
- Can You Flush Toilet Paper on a Boat?
- Dealing with Boat Toilet Blockages
When a Problem That’s Not a Problem Gets a Disgusting Solution
(This is an opinion piece. Feel free to debate in the comments.)
A common question from new boat owners is, can you flush toilet paper on a boat? Before I get to the full answer I shall say this.
If I had told my wife that I wanted to pack up our modern suburban life to go and live on a boat. And that on the boat we would have to gather up our used toilet paper. Then store it in a bag behind the toilet door! I know for certain that I’d still be sitting in my office watching snowflakes fall outside the window!
What’s more, I could never imagine having guests come around for dinner and then telling them that if they did a ‘Number two’. The paper they used would have to be put in a bin along with some of our own most recently enjoyed toilet paper!
I’m sorry if you’re planning on becoming a used toilet paper hoarder on your boat. It’s a disgusting habit you don’t want to get into. It’s right up there with farting in an elevator or picking your nose in the supermarket. So the question is can you flush toilet paper on a boat?
Why is Not Flushing Toilet Paper On a Boat Treated As Law, Without Question?
A blanket ‘No you can not flush toilet paper down a boat toilet’ is an urban legend. Sure you could block the pipes. And that worries some. Sewage is disgusting and dealing with blocked pipes tops the list on the ‘Dirty Jobs’ scale. But does one blockage every six months, year, five years exceed the nastiness of bundling up and storing your own fecal matter laced paper on a daily basis?
My take is a firm no! I say this as our boat’s Director of Sanitation. I would rather occasionally unblock the sanitary system the day after a burrito eating festival. Then subject, my family to bundling up their dookie smeared paper after each sitting.
Yes You Can Flush Toilet Paper On a Boat
A Change In Protocol Is All That’s Required
If you are new to boating. And asking yourself ‘can you can flush toilet paper on a boat’? Why not follow our suggestions and see if your boat’s sanitary system will allow you to flush toilet paper. After all, being able to flush toilet paper on a boat even with the occasional clog is far more attractive than the alternative.
- Switch to single-ply toilet paper, that is if you can find it. Surprisingly single-ply toilet paper can be hard to find at times. If you cannot find a single-ply then the lightest two-ply will do. There is absolutely no need to spring for special chandlery, marine toilet paper. Just don’t buy Charmin Ultra Soft unless you wish to perfect your bowl unclogging technique.
- Learn not to bunch up paper into a tightwad. The looser the bundle the easier it is to flush.
- There is no need to flush once per wipe. Experiment a little. Start with say ten bundles of 4-6 squares and then flush. see what kind of a challenge your sanitary system can deal with. Adjust as required. leaving a little head/ safety room. We have manual Jabsco toilets and there is no maximum amount we can pump at once. That is provided the wads are not too bunched up! On electric toilets, you need to be a little more gentle on the system. The key is lots of water. Experiment and see what works for you.
- Once you’ve got some idea of what the protocol will be. Inform and educate the crew.
Things to Consider Before Flushing Toilet Paper on A Boat
First off it is best to start with a clean system. If you’ve just bought your boat. I’d highly recommend replacing all of the sanitary hoses with a good quality chemical resistant hose. Change them even if the last owner says the hoses were changed last year. A year of poor flushing can seriously lead to seriously reduced pipe diameters as urine crystals block the pipes.
Urine Chrystals Are The Enemy
Seawater reacts with urine and forms uric acid and various carbonate crystals. The longer the urine sits in the pipes the more crystals form. The more seawater that’s pumped through the system the less the urine solution concentration. Which equates to fewer crystals. If you’ve never seen the crystals they are tough. Think terracotta tile.
On our boat, I’ve seen improper flushing reduce a standard one and a half inch diameter sanitary hose to less than a half-inch diameter of usable pipe diameter in less than a year. This happened in our kid’s hull. Our daughter is notoriously bad with flushing extra water and my son is really not much better. They were complaining that the toilet was hard to flush.
I went in and tried it and it was ok, not great. I tried lubing it with some vegetable oil but no joy. I ended up pulling off the section of pipe from the toilet to the holding tank and I was shocked by what I saw! Surprisingly the pipe never blocked with toilet paper. It just had a seriously reduced diameter.
Don’t kid yourself that a little acid rinse once a year leaves you with clean pipes. We do a high acid vinegar soak and flush monthly and an acid soak and flush once every six months. After seeing the blockage on the kid’s side I immediately checked the hose on our side, it had the thinnest coating of sludge. Same pipe manufacturer, same cleaning regiment on the same boat. Just different flushing techniques. So if my little experiment highlights anything. The key to uric acid terracotta free pipes is tons of water.
Can You Flush Toilet Paper With an Electric Head
The good news is yes you can. However due to the much smaller pipe diameters coupled with the fact that most electric heads do not flush enough water through the system. The pipes connected to electric heads tend to become blocked with crystals quite quickly.
Once you have tested and seen what amount of paper is safe to flush down an electric boat toilet. Make sure you seriously up the number of flushes or the length of time you hold the bowl fill/ pump-out button down when flushing papers.
Not only will this prevent toilet paper from sitting in the lines where it can dry out and get hard which will result in a blockage. But you will keep your pipes clear and free of crystal blockages. Even if you choose not to flush toilet paper down an electric head, I would strongly suggest increasing the amount of water you put through the system after each flush to keep the crystals down.
What Cannot Be Flushed Down a Boat Toilet:
Other than toilet paper, I do agree with the adage that you can only flush what has been through your body down a marine head. The following should NEVER be flushed down a marine toilet:
- Sanitary Pads, Tampons – also known as expanding mice. If a product had been designed to perfectly block a marine sanitation hose they could not have come up with anything nearly as good as a Tampon.
- Paper towel, shop towel, Bounty – Toilet paper is designed to be flushed and starts breaking down on contact with water. Paper towel on the other hand is designed to stay together when wet.
- Dental Floss
- Petroleum oils – not only are these bad for the environment but they will destroy various components in the sanitary system.
- Bits of Paper
- Make-up wipes, Baby wipes, etc. These are made of mostly plastic and not paper. Not only will the block your marine toilet but wipes should never go into the ocean.
Really anything other than toilet paper should not be flushed down a boat toilet.
Can You Flush Toilet Paper on a Boat?
The Marine Head Manufacturers Say, Yes?
- Jabsco Quiet Flush – Electric
- Jabsco Manual Flush
- Raritan Engineering – Electric
- Raritan – Various Manual Models
Dealing with Boat Toilet Blockages
NEVER USE A PLUNGER ON A MARINE HEAD. NOT ONLY WILL YOU DAMAGE THE SANITARY SYSTEM YOU MAY BLOW A PIPE OFF OF A THRUHULL AND CAUSE WATER TO FLOOD INTO THE BOAT.
DO NOT USE ANY DRAIN CLEANING CHEMICALS TO TRY TO UNBLOCK A MARINE TOILET SYSTEM. THE CHEMICALS MAY HARM THE SYSTEM AND SHOULD THEY NOT WORK AND YOU ARE FORCED TO OPEN THE SYSTEM YOU MAY END UP BEING COVERED IN A HAZARDOUS CHEMICAL SOLUTION.
Step 1 Stop pumping!
The Moment you suspect a blockage stop pumping. If you have an electric pump that cannot be turned off at the bowl flick the breaker to turn it off. Electrical or mechanical. Pumping only makes the situation worse.
You can turn a quick two-minute retrieval into a multi-hour project. Admit defeat! Pumping more water will not make the situation better. Not only are you going to make the blockage more solid but you’re going to have to deal with a greater amount of contaminated sewage water.
Make sure your guests are aware of the need to stop pumping at the first suspicion of a blockage.
Now for the good news. Provided you stopped pumping right away. Most toilet blockages on a boat are relatively easy to deal with. To learn how to unblock a toilet on a boat please see my post on unblocking a marine toilet.