View Full Version : Any tips on how to unblock an outside drain?


neeeeeeeeeek
11-10-2007, 20:27
My drains are full to the top with Shi... lets just say it's real bad.. I have attacked them with drain rods and they are still blocked, I think the wooden rods are not bendy enough and I think I have come to a 45degree downward bit and it's still blocked. Does anyone have one of those vans with miles of pipe that you feed down and blast it away with water? I think I need help but don't want to pay Dynarod millions of quid to do it... Going to get some longer rods and try again but just seeing if anyone wants to give it ago for cash with one of them presure washers drain cleaner things...
Cheers
:)

Green Web
04-01-2008, 15:30
The outside drain where the toilet waste goes to is blocked, so far i've tried poking it, Jeyes Fluid and this Mr Muscle drain cleaner i've just bought all of which have made no difference. :help:

Snook
04-01-2008, 15:35
Find someone with a set of dyno-rods?

40summat
04-01-2008, 15:35
Have you checked the foul drain manhole outside, to see if it is surcharged green web?

Edit... i just noticed you have, if there is another manhole down stream of the one you tried 'poking' see if it is clear, if it is you need to push some drain rods up towards the blockage to clear.
If the down stream manhole is also blocked you need to push them down stream as the blockage will be down stream.

You will need to buy or hire some drain rods though

neeeeeeeeeek
04-01-2008, 15:36
Drain rods... It's not very nice.. you get used to the smell after a while.
I borrowed some of someone on the forum, I can't remember who it was though.

Green Web
04-01-2008, 15:37
Have you checked the foul drain manhole outside, to see if it is surcharged green web?

Yes i have and it looks and flows fine, sorry should of stated that.

Green Web
04-01-2008, 15:38
Drain rods... It's not very nice.. you get used to the smell after a while.
I borrowed some of someone on the forum, I can't remember who it was though.

Where can you buy'em from? Just been to Wilkinsons and couldn't find anything other than this Mr Muscle stuff i've just bought.

40summat
04-01-2008, 15:56
No amount of chemical will shift a fould drain blockage. you can buy a set of drain rods from Wickes.
if you get some, try the plunger with short quick plungeing from the toilet bowl, if the pressure of that doesn't move it go to the manhole outside and use the pigtail attatchment on the end of the rods, and push them up stream (towards the toilet) when you feel the blockage give the rods a twist CLOCKWISE (or you will loose your rods) it should grip, pull back to get it flowing, repeat until it clears.

Green Web
04-01-2008, 16:33
Thanks 40summat much appreciated, just phoned Wickes and they have some dyno rods instock so i'm now off to buy some now and give it a try.

JoeP
04-01-2008, 17:01
I had to do this 26 years ago in my house in Manchester.

I was fragrant for several days afterward.... :rolleyes:

whitewitch
07-01-2008, 00:37
i had blocked drains outside the house, partner got a high powered pressure washer on it, worked a treat

rocky1
07-01-2008, 00:47
hi if you need help pm me and i will send you my number been in the drainage buisness 16 years.

Ms Macbeth
07-01-2008, 06:32
i had blocked drains outside the house, partner got a high powered pressure washer on it, worked a treat

We had a blocked drain recently, and that was the advice we were given - to try breaking down the blockage by using hosepipe or pressure washer. Worked for us too.

dane-katie
07-01-2008, 07:46
Were on a septic tank, and recently with the floos the ground got really wet so we ended up getting blocked up too was quite smelly LOL

when useing the drianig rods, make sure you do twist them otherwise you will definatly loose them! and when that happens its not good fun lol.

good luck

mojo1
17-11-2011, 11:39
We have a blocked exterior drain, the one the sinks drain into and I can't for the life of me get it unblocked.
The main problem is the main drain access is under my conservatory floor so I can't access it without ripping up floor tiles. I need it flushing if possible from the actual drain hole end.
Any suggestions... other than to shove it up my drain pipe :hihi:

glyn75
17-11-2011, 12:31
by some rods you can get them cheap enough be cheaper than getting some 1 out

ChrisT70
17-11-2011, 12:33
try darryl at blocklmaster
Blockmaster Drain & Sewer Clearance, Chesterfield
(Drains and Sewers)
5 Hazelwood Drive, Chesterfield, Derbyshire, S43 4WR
Phone: 01246 819131

mojo1
17-11-2011, 12:52
Thanks, I got my brain in gear and poked it with stuff, poured boiling water down there and plungered it, it's flowing again now.

scousemouse
17-11-2011, 13:48
Not saying you have done this, but do not put fat down the sink, you should wipe out as much as you can from the utensil with kitchen paper then bin that. I speak from bitter experience!!! I had some drain rods so was able to clear it.

MJ01
17-11-2011, 14:55
Get some caustic soda in - that'll shift anything, even my OHs dirty looks.

PS - if she's reading this, someone must have hacked into my account. Honest!

arrodbo
17-11-2011, 18:23
always have some drain cleaning caustic soda and follow the instruction carefully.
It costs a 1 for 500 grms and you mix half with cold water in a bucket,the chemical reaction makes it warm...pour down drain hole,leave for 30 mins then pour a kettle of boiling down.
It never fails and I always have a couple of tubs, I tend to use every couple of months and never get blockages

ukrod1
29-12-2011, 11:04
This is a very short but hopefully valuable tip that will come in handy to many readers, how to unblock a drain for free. Well, the easiest way is to start by putting old clothing on and find your self a pair of rubber gloves. Remove the drain cover with a small sharp tool such as a flat screw driver and then insert your hand in to the drain to remove any debris that you can feel resting at the bottom of the drain sump. Generally this will unblock most drains, but if it doesnt, here's what to try next. Insert a running hose pipe in to the drain and let it run. If the drain fills up with water then obviously there is still a blockage and further action is necessary. Sorry folks, but it's time to get down on your knees again! Insert your hand into the drain and feel around for a small hole which will be around the size of a tennis ball. When you have located the hole, guide the hosepipe in to the hole and gently push it through the pipe work until it will go no further and reaches the blockage. Turn the tap on and whilst the water is flowing, gently pull and push the hose pipe back and forth until the blockage clears and waste water begins to flow again. That's it..... well hopefully it is, but if not, feel free to check out my profile website or visit ukrod.com if you need further assistance. :)

nohitsherloc
23-06-2014, 18:48
Well this is my experience of clearing a blocked outside drain at the last drain on my property being the one that all my other drains feed into.
It starts with removing a drain cover and finding deep water and foul waste.
The first thing I needed to do was to identify where the water should run out.
Now this is where it gets a bit scary, I used a 40 quid vacuum cleaner to suck all the nasty stuff out and stored in large cement bath.
With all the crap out of the way I could see where the water should run out.
I blasted the exit flow with a jet spray that cleared the rest of the muck and could see that water was flowing slowly through the exit.
I could also see that a lot of gravel had accumulated at the exit point, again the vacuum cleaner was used to shift this, and finally I found a large round concrete plug just sat in the exit flow, I could not imagine this was serving any useful purpose so removed that as well.
I hope this may be of assistance to someone and if anyone's knows what the concrete plug is doing is my drain then please let me know.

40summat
23-06-2014, 19:05
The plug you found is the rodding eye nohitsheloc, what you have is a windsor trap, the gravel was blocking a U bend which is there to stop smells coming back from the main drain which yours connects to. (the water in it stops the smells)
The cap is for rodding down stream of the trap (as rods won't go round the bend)

removing the cap won't be a problem and would actually help keep the drain flowing should your U bend get blocked again.

a couple of short sharp plunges down the trap with a rod and plunger attachment now and then will keep it free and stop it silting up.

Fogey
23-06-2014, 19:36
Just be careful if using a jet spray, if the drain is blocked then it might not shift it. All that pressure has to go somewhere.

nohitsherloc
23-06-2014, 20:17
Fig-372-Section-of-Loco-Intercepting-Trap.jpg
Thanks 40summat, I googled an image of a Windsor trap and it all makes sense now that you have explained it. So the rodding cap had fallen into the exit flow and in combination with the gravel formed the blockage.

spider1
24-06-2014, 10:43
Fig-372-Section-of-Loco-Intercepting-Trap.jpg
Thanks 40summat, I googled an image of a Windsor trap and it all makes sense now that you have explained it. So the rodding cap had fallen into the exit flow and in combination with the gravel formed the blockage.

Nothing in manhole. Must be in u bend in toilet. to unblock fill toilet 1/3 full. get a sack or old jumber put it in toilet and use it as a plunger using a cut down brush handle. :hihi:

jennifer9178
27-06-2014, 11:19
If you have tried a plunger and it didn't help, you may need to buy/rent a plumbing snake and see if you can "fish" whatevers trapped in there out. I'd recommend trying this before calling out a plumber. Good luck.

lauren85212
25-07-2014, 11:47
industrial drain and sewer cleaner. app 6 for a litre. hardwear stores or plumbers merchants sell it. Pour it into drain outside, NOT into toilet bowl, its caustic! shut all outside doors and windows, dont breathe it in when pouring, itll burn your sinuses. its deadly and stinks to high heaven.BUT... it works wonders.

babyalex1
27-07-2014, 19:25
I'm sure this has already been covered but... as of October 2011 the water company is responsible for clearing lateral drains, i.e, any drains that another parties drains run into...