constipated king

Question
hello. I have a 6 year old 3 foot captive bred cal. king. i've had here since she was 1 month old. she is kept in a 30 gal. fish tank.  there is redwood bark(bagged)for bedding, a log to climb on and a small water dish, one side of the tank has a heating pad and there is a regular light above the tank.  2 months ago we noticed a lump just in front of her rectum,  we took her to a vet in town.(we live in a small town(there are maybe 10 pet snakes in town not including kids with captured snakes)). the vet said that she was constipated,  they used some kind of tool to remove the waste from her. we did not see the procedure.  
They charged us $145 dollers yet the lump had not gone down in size at all.  they said it would go down in a few days, it did not.  when we called back to talk to them they said to bring her back in.  they do not garintee there work, we would have to pay again.  And they have done very little work with snakes.  allso we can't aford another $145.
I hope i have given you enough back ground info. hear are my questions.  1....is it normal for a vet to not warinte there work.   2...... is my snake constipated and what can i do to help her., I am verry good at healing my pets (family) if i know what to do. (please help this amature vet)  
P.S.  please forgive my spelling. spell check did not work

Answer
(Dont' worry about the spelling.)
If the vet is not used to reptiles, then I'm quite sure that is why they would not guarantee it. Many end up reading vet books on reptiles and don't get the kind of hands on work that other vets that are certified to do reptiles.

Constipation is usually pretty easily solved, the only cases in which it isn't would be if he ingested some of her bedding.

"Depending upon a snake's size and metabolism, it may take longer than you expect for complete digestion to take place.  But if your snake's normal "schedule" is way off, and it is experiencing bloating, lethargy, or a lack of appetite, it may be constipated.  Check carefully first to make sure you didn't just miss the excretion or a regurgitation (covered by plants or under substrate).  An at-home treatment simply requires a warm bath, for about 15 minutes a day.  This should stimulate excretion fairly quickly.  If not, or if your snake continues to swell in the abdominal region, see a vet as soon as possible.  Over time, built-up feces can become so compacted that surgery is required to prevent death.  It is also possible that your snake has become impacted by some foreign object that cannot be passed normally.  This also requires veterinary attention immediately."

I have not had to take care of a constipated snake, but the soaking is what I hear about the most.  It is supposed to be pretty effective.

As far as the lump by her rectum, it might be a cyst. This would need to be opened and drained.

The BEST person to ask would be Adolf K. Maas who is a vet in Seattle, WA. He is VERY knowledgeable and I hear great things about his work. http://www.avianexoticanimalhospital.com/index.html
The phone number is on there, and I know he will give you the best he can give. I listened to him talk at my last reptile expo that I attended.

Good luck and let me know if the soaking helps.