Toilet and Shower Waste Issues and Possible Blockage?

[toasterx]

We have an ensuite from which the waste from the shower tray, wash basin merge (I assume) with the toilet. Recently when we flush the toilet it doesn't quite run away like it should, the water following the flush settles maybe 2-3 cms above normal and then subsides to normal in 15 seconds or so, while this happens the shower trap bubbles a little.

The toilet itself does not appear to be blocked.

I've tried blocking the basin waste and overflow, filling the shower tray with water and then using a plunger and it seemed to help a little but hasn't cleared fully. Repeated the above a few times while also flushing toilet and releasing a full basin.

Is there anything chemical we can put down the waste (and which one?) to help shift whatever it is that's getting in the way or do we need to stump up £££ for someone to come and sort it?

Cheers, T

 

[Madrab]

try one of these - they're great and cheap

 

[just pumps]

try one of these - they're great and cheap

And depending on the fittings below the shower they can blow them apart. Use it in the toilet pan. Do not use chemicals.

 

[Madrab]

Given the pipework seems to be restricted rather than blocked then I would hope any compression fitting would be made tight enough to take the mediocre pressure that this pump can produce, even then I would think it's more likely to blow or suck by the plunger seal before any fittings blew apart.

Never had an issue with any pipework using this, have done with the Rothy 'pump up and then release the blast' type though which I tried before, that wasn't pretty.

 

[just pumps]

Hope is the key word here and had similar experience to you with the pump up kinetic ram type.
From what the op says surely the restriction is in the soil stack and air forced back is making the shower gurgle.

 

[just pumps]

Internal soil stack with sticky durgo valve anybody?

 

[Madrab]

The one in my pic is just a blow and suck pump, it doesn't pump up and then let a pressurised charge go.

Yup, could be a partial vent blockage and the flush is pulling on the shower trap but I would expect the basin to do it too if it's on the same run, rather than a partial blockage and the flush just making the lowest trap bubble up rather than pull on the trap?

OP ... is the shower trap bubbling up or is it just gurgling?

 

[just pumps]

The one in my pic is just a blow and suck pump, it doesn't pump up and then let a pressurised charge go.

I know mate but the way I`ve seen some people "go at it" with them makes me wince.