i'm concerned about it because i believe it is not what the fish would prefer. to me that is important because
the preferences of all life is equally important to me.
they do not prefer it because it is not their natural environment and i know how much it would displease me.
i've posted a video of the vibrational effects of a mag pump in the pond. beyond the vibrations recorded, the fact that i could hear and feel the pump if the jar was floating on the surface was most surprising and telling to my mind.
to that end, to baffle the vibrations, one approach would be to have a wall between the pump and the
mass of the pond. there is excess epdm in the corner to lay it there as you say. in that position, there will be somewhat less vibration in the pond, though my musing on the physics of it leeds to me think it wouldn't be as effective as a recessed pump with a baffle. this could all be done at the corner, but i'm feeling a rigid plastic structure would be needed to recess the pump safely and more epdm would likely be needed.
without the flexible down hose, the water is being pumped from the top of the pond. also it adds a security measure
regarding losing prime.i have an effective filter for the hose already.. the check valve would be redundant security redundancy as will be the power outtage alarm i just bought.
digging a small trench and pit off the side of the pond offers little concern about water pressure or sealing. i would use contact cement on the epdm. throughout the water garden, there are many such points of joinery with significant flow and backflow pressures. take the pond liner itself for instance.......uh, maybe we should forget that one...lol.
i love ur intention to provide them natural peaceful environment , i want same in my ability $ resources , u can correct me if im wrong from ur research but i personally think , we some times compare animals with our living preferences which is not right , many things animals like and in nature they live in it but we dislike viceversa
i will give u example , most of the animals love dirt on ground and they get sick or injured if raised on solid floor but when we think from our perspective we try to provide them solid clean floor bcz we cant maintain otherwise
parrots and some animals take silence as threat and they get stressed , actually somebecome silent to indicate danger to others , i read parot budgies dislike total silence , they prefer noise among eachother and in environment , thats why parots look happier in living room among human and TV instead of silent separate room . possibly fishes like sound of splashes , humming , bubbling , flow and it keeps them active instead of super peaceful silent pond they may get lethargic
same goes for fishes , the natural most suitable environment for them is algae with murky water with mud on floor which provides them food and minerals ecosystem but we cant provide them bcz we want to view them and want clear water & cant maintain water quality otherwise . in big koi farms they raise koi in mudponds for fast and healthy growth .
fishes live in streams ,waterfalls under rain etc which has far greater vibration and sound then the pump we use even in our ponds if u measure turbulence vibration and the sound under the waterfall it will read alot more then the pump . can be some pumps are more noisy but i dont think fishes will even notice or b bothered by it or take it as alien ,if its consistent they may take it as running water turbulence/vibration. if they are really bothered they will show sighs of stress behave different inactive or scared , if they r active , eating , spawning etc that means they feel safe , u know goldfishes dont usually spawn in aquariums or in some ponds where they dont feel safe .
yes excessive sound can bother us . as far as i know , that sound is only of water circulating by propeller . may b u can place pump in a thick paint bucket or container with few holes that wud give additional barrier .
why ur worried about it
