Ring the tentants advisory service

http://www.taswa.org/

or start paying only 80% of the rent until they fix it
or send them a breach of contract notice
or move

you could tell them its not even putting out any hot water anymore, by turning it off all day and then turning it back on just before the plumber arrives lol

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[S]kid[S]

Mine definately does, dont know the brand off hand though. Worth a go, as I had the same issue when I bought my place. Heaps of cold water pressure, stuff all hot water. Turned the 'temperature' down on the system, hot water pressure was better, but took longer for the water to heat up.

Bit of fine tuning to get a balance of heat to pressure ratio, and bob's your uncle.

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[COLOR="Gray"]550Nm off a 2L... Just wish it was in the dak dak...[/COLOR]

I can vouch for John, I've had many showers with him and never had a problem.

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https://www.facebook.com/JanGlovacPhotography

MY05 STI track car | VF Clubsport

^^^ See, another satisfied customer!

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[COLOR="Gray"]550Nm off a 2L... Just wish it was in the dak dak...[/COLOR]

These little instantaneous gas hot water heaters work only if:
1. they are less than about 10m from your hot water outlet,
2. you have a standard outlet, cannot use a water saver shower head,
3. the pipes are not too restrictive, no narrow plastic flexible shower pipes.
4. They are properly serviced about once a year.

Otherwise they give poor and varying heat and the heater can turn off at random. That info cost me about 5 visits from different plumbers before I replaced the one I had.
As ‘Kato’ says you can try the temp control lever, on the cheaper types moving it to colder gives a higher but cooler flow. You could be lucky and this may work.
The bad news, blowing up a gas heater can be bad for your tenancy agreement, and the position of your head on your shoulders.
The good news – ‘summer is acommin in’.

Probably won't work for your instantaneous heater but....Mythbusters Water Heater Rocket:
http://www.youtube.com/watch?v=JmJoyuUJj2Q

-20 or 50 degrees outside, my shower has got to be scalding.

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Balls.

the problem you really have now is that since you have raised this issue before + then all of a sudden its rooted or missing = sounds a bit suss.... i know i would be suss if it was my tenants

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2.0L N/A 06 Impreza gone... hello BT-50

[url]www.battrick.org[/url] - because i never made it to the big time

I have had a similar problem. It was found out that there were some small rubber seals behind the taps which were fucked.

You should check that out - However, as you have bad pressure through the entire house, and not just one or two areas, it may be something worse.

How old is the system?

Have you tried turning off all your water outlets, and then go look at your meter to see if there is water leak somewhere?

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[SIGPIC][/SIGPIC]
Should have bought an STI

put an axe through it, and say you were chopping timber and missed