What happened to my waterfall?!?


Joined
Jul 22, 2018
Messages
7
Reaction score
7
Location
Western NY
Hardiness Zone
6
Country
United States
Hi There! I'm a newbie to all things fish & ponds... when my father in law passed we elected to take his beloved koi. We had his pond guy lay the liner and set up the aerator, filter, uv, pump, and waterfall- and all was well for about 2 weeks and now my waterfall is an absolute disgrace- theres barely any water flowing out of it! Do I need another pump just for the waterfall??
20180722_122631.jpg
20180722_122811.jpg
20180722_122631.jpg
20180722_122811.jpg
20180722_122729.jpg

We are using the same system that my father in law used- the pond guy unhooked everything from his house and brought it to ours- I've attached a pic of the equipment set up and of the pond and waterfall... I think that due to settling, the bottom ledge of the falls got tilted, I moved some rocks around to see if I could improve the flow, but nada... and in the past month, the water spilling over has diminished probably 90%...
My job was done in a hurry, we dug the hole and 2 days later he laid the liner and set up the equipment and the next day we brought the fish... The fish are happy and healthy (11 koi, from 2-8yrs old) and I will be too once I get this all done, aesthetically speaking!
I spent the past few days removing all the rocks I placed around the edge, added sandbags under the liner to create a berm, and I'm almost done replacing the rocks to hide the liner... next up, getting the waterfall back to a beautiful flow! I'm going to take the who lmk e thing apart, put concrete pavers down as a footing for each of the spillway rocks and then build up the rock hill again, this time using foam to secure and prevent water running behind the stones- Do I need another pump for the falls?? What's the deal here? At first water was cascading beautifully down each of the levels, it looked and sounded awesome- now it's a trickle... Please Help!! TIA =)
 

Attachments

  • 20180722_122922.jpg
    20180722_122922.jpg
    274 KB · Views: 307
  • 20180722_122919.jpg
    20180722_122919.jpg
    361 KB · Views: 306
Ad

Advertisements

Joined
Jul 22, 2018
Messages
7
Reaction score
7
Location
Western NY
Hardiness Zone
6
Country
United States
I'll double check... forgive my ignorance- I'm trying to learn a whole lot right now lol... in the black waterfall box, there are 2 filter sponges that I hose out, should there be a pump just for the waterfall or something else in there though?
I'm guessing our pond is about 2500 gals and I posted the pic of the pump/filter/uv system above...I guess I'm just wondering if that seems adequate... our pond is roughly the same size as my father in laws was...
I'll double check the valves and I read to try a soap test to make sure theres no air leaking out of any of the connections, so I'll check that too... it's just so strange that it was fine for 2 weeks and then the water pressure/flow just disappeared! -we even took the filter apart and cleaned the 2million little plastic filter media, but it didnt help...
 
Joined
Sep 14, 2013
Messages
6,025
Reaction score
4,790
Location
Cincinnati, Ohio
Hardiness Zone
6 A
Country
United States
Welcome MommaD and bless you for taking in your recently passed FIL's koi.

If the water level in the pond is remaining where it should , I think it points more to water restriction.....if the water level is dropping, you could have loose connections, water back flowing behind the water fall, cracked line etc.

Water restriction could be caused by a blockage in the lines or the filter is dirty and needs back washing. What is the flow pattern for the water from the pump to waterfall?

I don't have experience with an external pump, so others like @addy1 will chime in. I use submersible pumps and have one dedicated to the waterfall. Since you said it was flowing fine and now is not that points to either water restriction or water being directed from the waterfall due to disconnection, something isn't level, line break etc.....but the pond level would be dropping over time.

Hope this helps :)
 

addy1

water gardener / gold fish and shubunkins
Moderator
Donor
Joined
Jun 23, 2010
Messages
43,371
Reaction score
27,932
Location
Frederick, Maryland
Showcase(s):
1
Hardiness Zone
6b
Country
United States
Welcome to our group!

I would check the pump impellers. Some debris may have gotten into them and causing turn issues. Take the leaf basket off and see if it spins smoothly. Also make sure none have been damaged.

I assume you have checked the leaf basket. Make sure it is clean. Make sure the lid is on tight I have had a air leak, years ago, that slowed the flow, it was a non tight lid.

With a new install, and it working,then not working, I agree with above something leaking, plugged. loose. Call the guy that installed it, ask him for help also.
 
Ad

Advertisements

Joined
Oct 28, 2013
Messages
12,361
Reaction score
12,586
Location
Northern IL
Showcase(s):
1
@MommaD - kudos to you for taking your FILs koi. As a pond owner, I know I would be very happy to know my fish went to a good home if anything were to happen to me!

I second the advice to ask the pond guy for help with this - I'm guessing you paid him to set it all up for you. He should be able to at least give you some verbal advice over the phone as to what may be impeding the water flow.

Good luck! We look forward to seeing your pond up and running as it should!
 
Joined
Sep 29, 2010
Messages
343
Reaction score
159
Location
South carolina
Hardiness Zone
8a
Country
United States
If that is a sand filter, it’s a bad idea for a koi pond. They clog like concrete. Your submersible pump input needs screening to keep from clogging. Addy1 has the right idea. Restricted inflow on an external pump is bad for the pump. A waterfall width dictates the required size of the pump. At 17 inches wide, our last pond waterfall required about 3500 gph.
 
Joined
Jul 22, 2018
Messages
7
Reaction score
7
Location
Western NY
Hardiness Zone
6
Country
United States
Thanks All, that big external filter is filled w those little plastic wheels (polyethylene bio media) and we took it all apart and emptied it last week, rinsed all the filler pieces clean and it didnt help. We dont have a submerged pump at all, just an aerator in the pond... I guess I should give the pond guy a call, Theres just sooo much to learn here & I didnt have the time to do my research prior (I hate feeling so unprepared!)
 
Joined
Jul 12, 2009
Messages
3,945
Reaction score
2,639
Location
Mount Pocono, Pennsylvania
Hardiness Zone
6a
You should never clean the bio-material. You can backwash, that's OK. But by cleaning the bio-material you are getting rid of the beneficial bacteria the helps with the natural cycle which keeps your pond balanced and clean. By cleaning, you are effectively starting over from day one.
 
Last edited:
Ad

Advertisements

addy1

water gardener / gold fish and shubunkins
Moderator
Donor
Joined
Jun 23, 2010
Messages
43,371
Reaction score
27,932
Location
Frederick, Maryland
Showcase(s):
1
Hardiness Zone
6b
Country
United States
What does your water intake (that feeds your pump) look like? Is it just a hose stuck in the water? Does it have any pre-filter or foam on the end?
I didn't think of that. That could be the issue, what is covering the intake of the pipe in the pond.

Mine has a 5 gallon bucket on the end of the pvc intake pipe. Full of drilled holes. To reduce the draw on any one specific hole.
 
Ad

Advertisements

Joined
Nov 11, 2010
Messages
4,045
Reaction score
3,943
Location
Chicago Area
Hardiness Zone
5b
Country
United States
Hi. You should try to isolate the problem. You can try to disconnect the pump from the filter and see how the flow rate is from the pump. If it is weak than you know your problem is either the pump itself or the intake. If it seems pretty strong then it's something wrong with your filter or pipes leading away from it. As mentioned above there is so much to know about ponds. Fortunately you found a great wealth of information at GPF. i would read as much as possible. Also it's important to understand the nitrogen cycle as mentioned by another poster. A new pond is always tricky because beneficial bacteria hasn't taken hold yet. I would recommend to check the water readings of your pond for a while until you know everything is good. Good luck with it!
 
Joined
Jul 22, 2018
Messages
7
Reaction score
7
Location
Western NY
Hardiness Zone
6
Country
United States
Ok, 1st- THANK YOU ALL SO MUCH!
I took some time and got in my pond to do some investigating- bare with me, as I try to explain lol... Also, the skimmer basket thats on the pump really needed to be cleaned- doing so made a big difference and the waterfall flow has improved greatly- still not back to what it was, but I'd say about 75% back to full flow...
>>My new question/discovery: the submerged aeration device runs from a Laguna motor/pump, the aerator itself is large, I'd say about a foot wide, circular with a flexible cloth top and about 6/7" tall (I hosed it down but couldnt find a make and Google search hasn't helped to identify it)... I see the clear tube that brings air from the pump to the submerged aerator but it also has a large (2-3in) black tube connected to it... where does that tube run to? The lines are buried already so I cant tell- I'm thinking it's running to the skimmer basket/pump... the other 2-3" black tube in the system runs from the uv light (I believe directly to the waterfall) ...sooo, does this mean that the aerator is also responsible for returning the water to the system? Theres a large hole on the bottom of the aerator the part that sits on the pond floor- theres no mesh or anything covering it... is this right? My thought is that if in fact this hole on the bottom of the aerator is also the only thing bringing water to the skimmer basket on the pump, then there should a) be some sort of grate or screen on it to prevent clogs, and b) shouldnt it be sitting on a brick or something so that the liner doesnt get sucked up into that hole like a vacuum (if that hole is actually even an intake!) ...I wish I would've brought the aerator back up after I cleaned the skimmer basket to see if that hole had suction or not (prior to cleaning the skimmer basket it did not feel like there was)... I will if itll help us!
I've Google searched for so long and nothing shows 2 tubes running from an aerator... but i think the pond water must run from the aerator right to the skimmer on the pump, then to the pool filter, then to the uv light and then circulates back to the pond by way of the waterfall... we do not have a skimmer box in the pond... does this make sense?? There are no other tubes or devices... so I guess the major question is: does the aerator serve 2 purposes?? Brings air into the water and also suctions water out to the pump?? Or am I crazy? Lol

Thank you to any and all who read this and are trying to follow- I know that my descriptions and knowledge at this point are very elementary- so I really appreciate anyone who has kept with me thus far! :)
 
Ad

Advertisements


Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.

Ask a Question

Top